tonight on "nightline," when she is both beauty and beast. if you look like this -- >> they call me the goddess. >> how obnoxious can you be without turning off men? and what about women? are they also turned on by good looks? >> i feel like i look incredible. >> plus, skinny chef. how did he go from this to this? especially when eatingood like this. >> i just eat, eat, eat. >> one of the stars of "fat

chef" is, it's an epic struggle to stand up to daily temptation in the kitchen. his unusual recipe for diet success tonight. >> here we go. >> and hear no evil. the many faces of the blade runner on display today. oscar pistorius letting it all out during emotional testimony on the murder of his girlfriend riva steenkamp. the question, will this help his case? blam

>> good evening. tonight, we set up an experiment to answer a question that may have been on your mind, if only sub consciously since high school. if you're good looking how much can you really get away with? if you thought somebody was attractive would you overlook a bad personality? and if so, how bad?

here's juju chang with what we're calling a "nightline" love lab. >> reporter: we're at the world bar in new york city for a speed dating event. eight men, seven women and just eight minutes to decide if there's a love connection. but what no one knows is that today there's a ringer in their midst. meet lindsay. she's a professional actress. >> generally a guy who's interested in you just for your looks doesn't ask you any questions. just kind of like hey. >> this story all started with an online dating profile that went viral a couple of months ago. aaron carter fan. appearance? fabulous. personality, not so much. famous past times, knocking cups out of the hands of the homeless and tricking boyfriends to thinking she was pregnant. she turned out to be a social experiment conjured up by a comedy writer. >> i wanted to see if there was a lower limit of how awful a woman could be before men wouldn't message her own dating websites. >> over 1,000 men still wanted

to date her. with nearly 40% of american singles looking for love online. relationship coach donna barnes said men just can't help themselves. >> it all starts visually for a man as far as attraction. >> you say visual, i say shal w shallow. >> okay, so men are shallow online. but surely they wouldn't be as blinded by beauty in person. well, we decided to find out. which brings us back to the world bar and our ringer, lindsay. tonight, we asked her to be not just beautiful, but obnoxious in that same special aaron carter fan way. >> one time i did sleep with my cle college roommate's boyfriend, but i couldn't help it. he was hot. he kind of looked like you. at the end of the night, they would have a chance to decide who they would be willing to date again. will they choose our despicable beauty? >> my friends call me the goddess. >> she's not going to make it easy. mike is taken aback. >> i try to play it up.

>> but macho takes it right in stride. >> they call me the goddess. >> what i'm getting from you is a confidence, but not arrogance. >> thanks. >> it's a good thing. >> lindsay's date seems to be looking for a positive spin. >> arrogant and manipulative things and he's like i like that you're blunt. >> people aren't themselves when they first meet somebody. they're trying to put on the person that they think you're going to like. >> right. >> so i think it is refreshing on some level for someone to say hey, this is me. >> when she digs her gold digging line on this guy. >> i want to meet a guy who can take care of me. make it happen. well, the sugar daddy in the right way. you know? like. >> fur coat and hat, i got it. >> for me, yes. >> her next date steven tries to take it as a joke. >> a man who can take care of me. that's kind of my goal. you know? i. >> i'm not trying to work for

it. >> nobody is trying to work for it. >> no. >> i would like to retire and play basketball every day. >> although this guy actually tries to talk her out of it. >> wouldn't you be bored if you didn't have anything to do all day? >> i could find -- i'm not going to sit around and eat bonn-bonns. >> what would you do? >> get up, go workout, go shopping. meet up with friends, go grocery store, cook a nice dinner. >> she says she would be a ho happy housewife, even though it's not entirely clear she would be content. >> i miss partying and being wild. and hooking up with random people. those were the days. i'm lindsay. >> but there's one guy who seems a match for her in awfulness. >> i like to think of myself as a goddess. >> you know what, that's really ironic. i like to think of myself as a god. >> really? >> i do. i'm zeus.

you can meet my aphrodite. >> okay, we have a confession with he hired him, too. how will these women deal with the equivalent of the aaron carter fan. >> the queen's got to stay home to make sure the castle looks good. >> jarid begins by complimenting himself. >> i feel like i look incredible, wrinkles aside, which make me look distinguished. i'm owning it. >> i need another dprink. . >> christine is not charmed. >> not good. >> are are we fighting? >> reporter: jarid is trying to convince these women their place is in the kitchen. >> the thing you like about salsa dancing, do you feel

that's a good thing to have for life. not that the man is the leader, but that the man is the provider. >> daniella isn't buying it. >> not necessarily. i've done my studies. >> reporter: clearly she's not interested. >> but alexandria is more receptive. >> best friend, girlfriend comes on to you. is it your responsibility to keep her faithful to her boyfriend? >> he's trying to convince her that cheating is okay. >> she is not being satisfied by someone and i can satisfy that person and i'm interested in doing so. >> you make a valid point, sir. >> good alexandria be doing the same thing guys were doing, excusing bad behavior if someone is good looking? if so, she was the only one. three men thought lindsay was worth a second date, but sure enough, alexandria was the only

woman who wanted to go out with our mr. opinionated and obviously sexist undercover date e er. >> i didn't think he was obnoxious at all. i ended up agreeing with him in the end. not because i found him attractive but because of the way he presented the material. >> she happens to work for abc. though we promise she was not in on the experiment. remember daniella, she definitely wasn't buying jarid's argument. >> he seemed a little by, not crazy, that's too much. but that he wanted to experiment different things. >> as for the men, trevor was one of five guys who wanted no part of lindsay. >> i just thought she was a gold digger. >> giving women everywhere some hope that men aren't completely driven by looks alone. >> it's funny because there are a lot of women who are gold diggers. and she was just a little bit more obvious about it than most. >> overall, she was nice to me. i would say.

but one thing that alarmed me was she said that she wanted a guy to take care of her. >> our actors felt those alarms should have been more obvious. >> three guys picked lindsay. >> nice. >> i'm not surprised because i really did feel like i was being undesirable. >> i'm happy that my number is low. because that behavior shouldn't be rewarded. >> were you surprised by the results? >> i'm not particularly surprised. i have faith in women that they hopefully have a little more depth, i hate to say, in choosing a partner. >> although in fairness, it may not have been balanced. >> i think even his body language was different. if she wasn't making eye contact she probably wouldn't get the same response. >> when men are ready to settle down and have a real relationship, they want beauty that's more than skin deep. >> when you're really looking

for a relationship, men are looking for a lot more than just looks. yes, they need to be attracted to that person, but there needs to be substance to back it up. >> juju chang with insight into the human condition tonight. thank you. next, how did one of the stars of a show called "fat chef" lose so much weight? especially when sur rounded by all that food?

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>> it's hard enough for any of us to lose weigh, but imagine if your whole job is to work in a kitchen. in fact, imagine your whole career was built around making mouth-watering comfort food. tonight, you're going to meet one of the stars of a show called "fat chef." a guy who underwent a dramatic transformation. alex perez tells us how he did it. if. >> if you think managing your weight is tough, imagine what it's like for a chef. >> piles of bacon everywhere. you know?

tempting. >> reporter: he's a star chef? cleveland, ohio. he owns six restaurants and a food truck specializing in comfort food. >> we sell more short orderner this restaurant than any other in ohio. 1,300 to 1,500 calories would be a good estimate. >> a day's worth of calories in this one meal. >> yeah. >> reporter: but for rocco, it was his profession that almost killed him. >> i was probably 8,000 to 10,000 calories a day. i thought i would end new a pine box because there wasn't a casket to fit me. >> this was him at his he have viest. 497 pounds. now he's down to 240 pounds. >> millions of americans struggle with obesity. there are over 100 million dieters in the u.s., making up to five dieting attempts each year. rocco's turning point came after

seeing pictures of a trip to italy. >> the.ic chur, man. i was frankly unhealthy, unhappy, unsavory to look at. size 54 pants. a fit adult is about half that, 28, 30. rock bottom was that. i would have to ask for extenders on the plane at 400 pounds. >> i didn't have an offswitch. i would just eat, eat, eat. >> but two years ago, rocco took his battle public. the food network cast him out of 3,000 contestants for the tv show "fat chef." >> my name is rockie whalen. i'm the biggest, baddest chef in cleveland, ohio. >> reporter: the pressure was on to lose weight as america watched. >> you've got to change yourself. >> what was the most difficult part about being into the show. >> walking into the gym for a first time. it was a humbling moment to take my shirt off and get on a scale.

>> reexercised two hours a day for six days a week. >> i'm a little bit nervous. >> drum roll, please. >> at the end, he lost a staggering 85 pounds. >> 256.2! >> but the real challenge came after the cameras were off. >> when you don't have a motivating goal like stepping on a scale for all your friends. they're all cheering, it's more difficult to maintain. >> we're going to the gym and it's 6:20 in the morning. it's cold, it's dark. this is where you find out who you are and what you're made of. >> rockie transformed his entire way of life, losing a staggering 140 pounds. planning his entire day around workouts and small meals. >> i run, i do tread meal. fitness revolution is three to four days a week. >> i'm humble in this arena. i'm still not happy, though. i mean, i have a goal in mind. >> which is? >> 240 pounds.

>> nice work. >> michael was another contest assistant on "fat chef." >> i was so disgusted at how far i let myself go. >> he, too, faced a similar struggle after the show ended. >> 430.0. just about 80 pounds. >> when i started "fat chef" i was just as 500 pounds. in that four months, i lost 100 pounds. >> he lost an additional 60 pounds after the show, but when his bakery business went under, the stress took over. >> michael gained back 20 pounds in the last year. >> the hardest thing for my diet when i had to close my business was the stress. the stress was overwhelming. and, you know, and whenever i have that, that's when you really make bad choices. i'm an emotional eater. but i recognized it and i stopped it quick. and i erased it. >> now he works as an executive pastry chef in new york city. and michael says he's back on track. >> so right now, i'm 360. i want to get down to 260. i need to lose 100 pounds to be

where i want to be en i was in high school. >> reporter: even for rocco, working out is just half the battle. each day going into work means fighting the temptation to taste, a war fought with backup from his employees. >> you don't equip yourself with a spoon. and we have a no policy taste. all my guys with the tasting spoons are plastic spoons, tasting spoons. so i just don't equip myself with a spoon. i'll say brian taste this, t.j. taste this. what's this taste like. does it have enough salt or butter? finish it with more butter. >> once you've been that big, you can always return to being that big. >> no dougt, brother. >> do you think about that? >> every day. >> but rocco has trained himself to resist. >> the one dish you sold the most of here, but you won't it pip. >> i won't. i know what it takes like. i have eaten it over the years. it's delicious. you're going to verify that. >> it looks so good you almost know it's bad for you. >> while i dug into the suck lent beef, rocco opted for the

healthier version. grilled chicken breast and quinoa. >> oh, wow. >> it's good you didn't have this back to back with this. this is very good. but it's hard to follow it up right after you've had a bite of the kobe beef. it's hard to resist. i'm alex perez for "nightline" in cleveland, ohio. >> you can get chef rocco's recipe for fair and light chicken on abcnews.com/nightline. the many faces of oscar pistorius on trial. ♪ [ female announcer ] if you're struggling with bipolar depression, there are treatment options. ask your doctor if once a day latuda, lurasidone hcl, may help you. in clinical studies, latuda has been shown to be effective for many people struggling with bipolar depression. latuda is not for everyone. call your doctor if you have unusual changes

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it was quite a show in court today. oscar pistorius on trial for murdering his girlfriend, the model ree ve a steenkamp. burying his head in his hands, coffering his ears, even hiding his face. will this display help or hurt his case. oscar pistorius appeared to be at his emotional breaking point. >> the screams that sounded like fighting. it was more like someone being attacked.

>> as neighbor charles johnson testified, pistorius seemed to be wiping tears from his eyes. pistorius, south africa's olympic hero is accused of murdering his girlfriend, model reeva steenkamp. he held his head in his hands, covered his ears and rubbed his eyes. and then there was this. pistorius gagging and wretching as neighborhood radioologist explained the state in which he found reeva's body. it was evidently difficult for pistorius to be brought back to that evening. >> i remember the first thing he said when i got there was that -- he said i shot her. i thought she was a burglar and i shot her. >> during cross-examination, he said pistorius looked sincere in his grief. even up to the point they feared pistorius may be suicidal. >> making promises to god.

he was trying to i don't know, maybe get atonement. but it was very, very distraught. severely so. definitely wanted her to live. >> what was clear that evening? >> it was obvious that oscar was emotionally very, very upset. >> just like he was in court today. >> and we will, of course, continue to cover this trial. thank you for watching abc news tonight. tune into gma first thing in the morning. and as always, we're online at abc news.com. good night. hey, robert, can you move over a little bit, please? no. take the middle. i don't want the middle. gianni,you mover to the middle. i'll go to the end. will you just sit down? all right, you're gonna feel a little man-thigh. how does that grab you? you like that? come on!

cool it already. people, shut up, all of you guys. what? what's wrong? nothing. it's... debra's not feeling well bio...hormonally. oh...got it. the enemy within. so...do me a favor. just don't do--give her a r- be cool, be cool. hey, ray. these were on topof. are they dirty,or a? uh, yeah. those are dirty. a hamper works, ok?meenw there's a lid on it,and. now, you take your clothes-, not the clothes you'rewo but your dirty clothes-- and you shut that lid.i,