>> this is "nightline." >> tonight the plus-size debate. when "glamour" magazine included amy shum in its chic at any size issue it sparked a social media firestorm, raising questions about what is plus size. tonight what the editor of "glamour" is telling us about this controversy and why the fashion industry is redefining labels. this is "american idol"! >> dim the lights. saying good-bye to the tv singing competition that let you be the judge. "american idol" launched amateur singers like kelly clarkson and carrie underwood into superstardom. after 15 seasons, tonight for the last time. >> we have a mission for you. rogue one. "star wars" fans, ready for more?

rogue one goes deeper into the "star wars" universe. the trailer -- >> what will you do? >> going massively viral tonight. first here's the "nightline 5." how much protein does your dog food have? 18%? 20%? purina one true instinct with real turkey and venison has 30% protein. support your active dog's whole body health with purina one. hey, need fast heartburn relief? try cool mint zantac. it releases a cooling sensation in your mouth and throat. zantac works in as little as 30 minutes. nexium can take 24 hours. cool mint zantac, no pill relieves heartburn faster. >> number one in just 60 seconds.

good evening. we start with the social media

backlash led by the tv and movie star amy schumer against "glamour" magazine. what they put on their cover and the debate it has sparked about body image, women's health, and whether the term "plus-size" needs to be scrapped. here's my "nightline" coanchor juju chang. >> reporter: she's the it girl comedienne. >> what size are you now? >> i'm a 4 at old navy. >> okay, so an 8. >> yeah. >> reporter: unafraid to poke fun at herself and all the body shamers out there on her hit show "inside amy schumer." >> what size are you thinking your new body's going to be? >> i'm definitely going to be a size 2. >> congratulations that's a great size. >> reporter: labeled the queen of comedy, there's one label she's not laughing about, plus-size. the comedienne taking issue with "glamour" after being included in the "chic at any size" special issue featuring ashley graham. schumer highlighted alongside melissa mccarthy and adele as

women who inspire us. the "train wreck" star taking to instagram. i think there's nothing wrong with being plus size. beautiful, healthy women. plus size is considered size 16 in america. i go between a size 6 and 8. and she goes on to say, young girls seeing my body type, thinking that is plus size? not cool, "glamour." not glamorous. her blast going viral. >> are you surprised to be caught in a twitter war with amy shumer? >> nobody can outtweet amy. >> reporter: cindy levy is the editor in chief of "glamour" magazine. >> i'm sorry she didn't like being named on the cover and i'm sorry she wishes her piece hadn't been included. but i'm confident that the message of the issue, which is that there are great clothes out there for all of us, is one that will relevance nate with readers. >> reporter: "glamour" magazine is on the forefront of the plus-size revolution, now a $20 billion market. >> i don't believe amy schumer

is plus size. that's not a term i love. the cover line says, women who inspire us. we felt the audience for this special edition would be inspired by her completely hilarious and constant, consistent message of body positivity. >> reporter: which is why "glamor" made her its cover girl last august and the uk edition gave her the trail blazers award last year for her messages of body positivity. >> i'm not going to apologize for who i am and i'm going to love the skin that i'm in and not be striving for some other version of myself. >> do you regret including her in the issue? >> i don't regret including her. i like amy, i think she's hilarious. i'm sorry she wasn't happy with it but i think women enjoy what she has to say on the subject of body image. >> reporter: the special edition, ashley graham who made a splash as a "sports illustrated" swimsuit cover girl, says the term "plus-size" is outdated given 60% of

american women are size 14 or larger, sparking many women to ditch the label altogether and embrace a body positive movement. >> i think when people say, let's get rid of the word plus, what we're meaning is we don't want to be in a box. >> we don't want to be labeled. >> reporter: model candace huffine is featured in the same issue, now speaking out in the hopes to redefine what it means to be "plus-size." >> i just decided, why are we treating it like a dirty four-letter word? why can't we change the definition, take back ownership of it, and prove to everyone that a plus-size woman is healthy. i'm a size 12/14. so this is the body i'm meant to be in. >> what would it take for you to be a size zero? >> it would be impossible. >> you would be going after an unhealthy body? >> which is why when i had that choice 15 years ago to lose weight to get a contract at this agency or to move forward, i'm

very grateful that i didn't even try to go down a road that wasn't meant for me. >> reporter: candacenow part of a group of curvaceous women represented by img, the same agency responsible for top models like gisele, kate moss. >> we say, if you're a model you're an img model. we opened up the conversation on diversity in the last two years. >> reporter: a conversation that led img models president ivan bart to create the curves division. the name pointedly rejecting the industry's plus-size label. ashley graham and marquita among the women who captured the attention of magazines and designers. >> when i saw how successful they are, how much revenue they generate, it opened our minds about how important this industry is right now. and how much opportunity there is. >> reporter: and the perfect opportunity to send a message to young girls about what is a healthy body size.

girls like tessa embree, who this week sparked a similar conversation after writing a letter to her gym teacher refusing her assignment to calculate her body mass index, bmi. >> i am just beginning to love my body like i should and i'm not going to let some outdated calculator tell me i'm obese because i'm not. >> reporter: the eighth grader refusing to let her health be defined by a number. tells sa and her mother say their physician deemed her healthy, giving her more of a reason to speak out about her body insecurities. >> i realize that i eat healthy, i work out, i play softball at least five times a week. and i'm comfortable in my own skin. >> what would you say to middle schoolgirls who are asked to calculate their bmi? >> do you love yourself? are you happy with the way you look? that number means nothing. do the things that make you happy and that gets you the furthest in life. >> reporter: but this conversation around body image is crossing gender lines. >> the absence of big guys feels

like a form of body shaming. >> it kind of does, like shaming by omission. it's showing that, well, we don't find this attractive, so we're not going to highlight it. >> reporter: at 6'6", 26-year-old zach micoh has been signed as the first big and tall male model. >> everyone said, you're the first plus-size model. i remember thing, that can't possibly be true. >> reporter: that's because from a young age miko says he struggled with the same types of anxieties women have long been confessing. >> i grew up with crazy body image issues and self-esteem issues and insecurities based on my size. i always felt like this big kid that was made fun of. i still have nightmares about being dragged to the husky section by my mom when i was a kid. >> reporter: with the average waist size on men measuring 39 inches this once big and tall in each niche market is going mainstream. >> hello, i'm chubby shorts male

model of the year. >> reporter: chubby shorts boasts of real men wearing real shorts. the retro brand ditching the six-pack model look and embracing the dad bod, in an effort to reach their core customers. with hundreds of thousands of followers on instagram the label is hotter than ever. >> i would have been interested in fashion when i was younger. i know i would have. but it wasn't available to me. >> it really is a blind spot that fashion has, so crazy. >> yeah, so i'm really hoping that we can get past that and get designers on board and realize just the money-making potential they could have. >> reporter: regardless of the label, it's undoubtedly a heavyweight market. in the end, it seems amy schumer is putting the plus-size misunderstanding behind her. posting this whimsical clip in a skimpy bikini. writing, bottom line seems to be, we are done with these unnecessary labels which seem to be reserved for women. for "nightline," i'm juju chang in new york.

next, shoate that gave us carrie underwood and kelly clarkson says farewell. tonight, the stars and surprises on the final episode of "american idol." first, the new "star wars" trailer breaking the internet tonight. the movie's called "rogue one: a star wars story." it's not part of the trilogies, it's a "star wars" standalone movie, the first of its kind. fans are now getting their first look. >> forgery of imperial documents -- >> reporter: "rogue one" tells the back story of how the rebels stole the secret plans to darth vader's dreaded space station and super weapon, the death star. >> a major weapons test is imminent. we need to know what it and is how to destroy it. >> reporter: felicity jones plays the rebel tafrksed with the dangerous mission. >> reckless, aggressive, undisciplined. >> this is a rebellion, isn't it? i rebel. >> she is strong when she needs to be and she has an incredible

determination and focus. but at the same time there's enormous vulnerability to her. >> reporter: of course she is not the first enterprising heroine in the "star wars" story. loyal fans will remember those stolen plans, they're the same ones princess leia hides inside r2d2 in the 1977 film "star wars": a new hope." >> what have you done with those plans? >> tonight fans are scouring this new trailer for clues. could that mysterious dark-cloaked figure be darth vader? we'll likely have to wait until the film comes out in december. and when i finally told my doctor, he said humira is for adults like me who have tried other medications but still experience the symptoms of moderate to severe crohn's disease. and that in clinical studies, the majority of patients on humira saw significant symptom relief. and many achieved remission.

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the show "american idol" made tv history, launching careers and for a while scoring huge ratings. put in the brutal world of primetime, few things last forever. abc's david wright on "idol's" farewell show. >> this is "american idol"! >> reporter: 15 seasons, 555 contestants -- ♪ >> reporter: 11 judges, and tonight, "american idol" sings its swan song. mega stars, past winners, and former judges gathered one last time for the finale. even the president sang its praises. >> it inspired young artists and captivated audiences across the country. and it taught america what it means to be pitchy. >> reporter: former judge jennifer lopez capitalizing on all the attention -- ♪ i ain't your mama >> reporter: to debut her own song. that's why she's an "american idol," folks. celebrating a show that's changed tv and music both.

♪ >> reporter: "american idol" was interactive, empowering viewers to pick the next big star, giving contestants a truly national audition. >> i think that was really exciting for people to do and to watch together with other people and to see their person make it. >> reporter: people watched because you never knew if that next contestant might just be the next big thing. >> it was like this giant cinderella story are everybody knew kelly clarkson had been a waitress. >> the winner is kelly clarkson! >> reporter: kelly clarkson was an unknown singer from texas when she won seen one of "american idol." tv moment that seemed to last a lifetime. today she's a bona fide star. she's sold nearly 18 million albums with hits like "stronger" and "since you've been gone." >> from the start i thought kelly clarkson was a great sing letter are she's a very strong person. and that really came through in the career that she's had ever

since. >> reporter: even "american idol's" losers could end up being dream girls. like jennifer hudson, sent home early on season three, despite being widely praised by the judges. but it all worked out in the end for hudson. ♪ >> jennifer hudson! >> reporter: that performance won her an oscar. she may not be an idol. but there's no better consolation prize. who doesn't love carrie underwood taking a smoke break. ♪ sometimes i need a smoke break ♪ >> reporter: mostly belting out powerhouse anthems like "before he cheats." ♪ before he cheats >> reporter: 11 years ago she was just another contestant on season four. ♪ cause i can't make you love me ♪ >> going to l.a. for me for "american idol" was so scary. i was crying like in the car on the way to the airport. not only was i flying for the first time, i was flying by

myself. >> reporter: simon cowell knew talent when he heard it. >> i will make the prediction, not only will you win this show, you will sell more records than any other previous "idol" winner. >> reporter: he was right. carrie underwood has gone on to sell more than 58 million albums and win 13 grammys. >> i love that she's gone on to be a big star and he had predicted that, simon. >> reporter: cowell's signature snarkiness was a trademark. >> amazingly dreadful. >> reporter: chemistry part of the early success. >> i will bow to the god of paula abdullah. >> reporter: paula abdullah got a spinoff reality show "hey paula." the star's odd behavior led some viewers to question whether she had a substance abuse problem. >> i am exhausted! >> reporter: allegations she addressed on "nightline" in 2009. >> i've never been addicted to any prescription drugs. i've never been drunk.

i have worked my whole life. i'm not the girl that's in those tapes. >> reporter: paula, simon, and randy eventually moved on themselves replaced by a revolving door of celebrities. among them ellen degeneris, steven tyler, jennifer lopez, and of course nicki minaj who feuded with cojudge mariah carey. >> nobody said every moment, excuse me, that the -- can i make -- oh, doorling -- >> it was really fun to watch because they really are two divas. their feuds were all about themselves. >> this is "american idol"! >> reporter: the one constant on the show, perennial host ryan seacrest. >> i was terrified. i put on a brave face the first couple of episodes. i wasn't quite sure how to run a live television show. >> reporter: in 15 seasons there were plenty of diamonds in the rough. ♪ hit me when the wind blows

♪ >> reporter: some just plain rough. ♪ talk to me tell me your sign >> reporter: remember william hung? and his rendition of "she bangs" one of the many unforgettable performances on "american idol." ♪ looking like a fool with your pants on the ground ♪ >> reporter: if imitation is the greatest form of flattery "idol" must have been beloved, paving the way for shows like "america's got talent," "x factor," "the voice." >> "the voice" was a little copycat version of "american idol," really. i don't think it's really about who wins it because -- i mean, i've watched it enough, i don't even know anybody from it. >> reporter: viewership declined as fresh talent turned to social media. bypassing the tv middleman altogether. >> justin bieber was discovered on youtube. shawn mendes was discovered on vine. >> the winner of "american idol" season 15 is -- >> reporter: all good things must come to an end. >> trent harvin!

>> reporter: so tonight, one final bow. i'm david wright for "nightline" in new york. next, they call themselves a tech company wrapped in a media company wrapped in a sports league. the people trying to make drone racing a thing. i'm billy, and i quit smoking with chantix. i decided to take chantix to shut everybody else up about me quitting smoking. i was going to give it a try, but i didn't really think it was going to really happen. after one week of chantix, i knew i could quit. along with support, chantix (varenicline) is proven to help people quit smoking. chantix definitely helped reduce my urge to smoke. some people had changes in behavior, thinking or mood, hostility, agitation, depressed mood and suicidal thoughts or actions while taking or after stopping chantix. some had seizures while taking chantix. if you have any of these, stop chantix and call your doctor right away. tell your doctor about any history of mental health problems, which could get worse or of seizures. don't take chantix if you've had a serious allergic

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finally tonight, what some are calling the formula 1 of drone racing. intense speeds. extreme forces. for the highly trained, technically skilled pilots of these drones, it's not just a hobby, it's a sport. >> drone racing sits at the nexus of a new kind of sport using a new kind of technology and really a new form of entertainment. >> welcome to the drone racing league. these drones flying 80 miles an hour around corners like this one and here at sun life stadium. >> when people see it, they tend to say, wow this reminds me so much of a sci-fi movie, this is like "star wars" or this video

game i played growing up. it's got this futuristic feeling. >> reporter: this is what the pilot sees through a pair of goggles connected to the camera on the drone. making the experience for to the pilot and audience that much more exhilarating. soon they'll be racing to deliver packages to your front door. thanks for watching "nightline." "world news now" is coming up with overnight breaking news. tune into gma and we're online 24/7 on abcnews.com and our "nightline" facebook page.