this is "nightline." >> tonight, the search expands for the missing airasia jet with 162 souls on board, now believed to be at the bottom of the sea. how could another plane disappear into thin air? the clues officials are using to guide their desperate hunt. plus, nearly a dozen number one hits -- >> that's what i'm talking about. >> this year has been a roller coaster ride for country music's golden boy. >> what's up, "nightline"? >> tonight, luke bryan sings his way across america. >> let me see it. >> he shows us how to shake it. and can you party your way into the new year without ending up like these guys? >> you okay, buddy? >> no, i'm in so much pain right now. >> some say this miracle cure means the end of a hangover. >> we're all good. >> if you're willing to pay for

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there is breaking news and for that we go to the abc news desk. >> the head of indonesia's national search and rescue agency has said at a press conference that the debris spotted today in the java sea is very likely to be from the airasia flight that went down over the weekend with 162 souls on board. officials reporting three bodies have been retrieved from the water. we turn to our chief foreign correspondent terry moran. >> reporter: it's day three in the desperate search for airasia flight 8501. day three of the deepening mystery surrounding a plane that seemingly vanished carrying 162 people on board, including 16 children. now the search is ramping up expanding in the waters of the you've have a sea, growing to 13 search areas seven countries joining in to locate the missing jetliner. the families of those on that fateful flight grieving desperate, all gathering in airports in indonesia and in singapore. here in singapore's airport

terminal 2, here is where the grim vigil is taking place, behind those officers there. right now there's no news. but a prediction from the head of indonesia's national search and rescue agency. they currently suspect the plane is located on the ocean floor. >> a deep sense of depression here but we'll stay strong. and we -- our first priority now is to look after the families and do whatever we can. >> reporter: search teams have less than 30 days now to find the black boxes filled with data on what happened to that plane. they signal their location but only until their batteries die out. >> probably not going to take more than six to eight days to get all the sophisticated ships in there that are going to be needed to listen for it. if it's down there and pinging they should be able to find it. >> reporter: but so far, coral mistaken for oil slicks has only led to false hope.

it is a massive effort. malaysia where the airline is based, astronaut, and singapore joining indonesia in its search. the u.s. is sending a destroyer, the "uss samson." and south korea and china are expected to join in tomorrow. there's at least 18 ships and 29 aircraft. two sets of underwater locater beacon detectors will also be used to scour the seabed. while so much of what happened in this plane is shrouded in mystery, here's what we do know. sunday morning the jet takes off from surabaya indonesia. the plane encounters severe turbulence and weather over the you've java sea. the pilot requests to change altitude to 38,000 feet. air traffic control tells him not to. but he appears to climb anyway. >> the captain of an airplane is like the captain of a ship. he is directly responsible for the safety of that aircraft and

the safety of the passengers on board. so if he needs to move that airplane and put that airplane somewhere, he is not going to ask permission, he is going to do it. >> reporter: air traffic control suddenly loses communications and by 6:18 the plane was no longer visible on the radar. vanished into thin air. 162 people mostly indonesians, all gone. airasia, based out of malaysia has had a good safety record and the pilot was experienced. >> 13 years. >> reporter: of course the harrowing question remains. how could something like this happen? >> a bomb could go off, you could end up flying into a thunderstorm. until we find something of the airplane and know where to look for the black boxes it's just a puzzle. >> reporter: many are calling for realtime gps monitoring and the international regulatory commission is studying the idea. but monitoring a plane miles in the air is much more difficult

than tracking a cell phone. >> we need to look for other days to do it. one of those ways is satellite so we always have an idea in relative terms where an aircraft might be anywhere in the world. >> reporter: all of this is eerily similar to the malaysia airlines flight 370 which went down in march. but there are marked differences between the cases of flight 370 and this one. >> both have disappeared but they disappeared in very different places very different circumstances. we're only two days into this mishap. >> reporter: malaysia airlines was widely criticized for waiting too long to release key details. and when they were released they were often contradictory. this time asia airlines brash ceo tony fernandez has been tweeting out live update and the airline released the passenger manifest hours after the plane vanished. experts hope this search will be easier because this time they are looking in the relatively small java sea. >> it's a shallow sea.

it's not like the indian ocean which is so deep that it goes to the limits of our ability to search the ocean bottom. the java sea is 150 feet deep. >> reporter: foul play was initially suspected and experts say something more sinister than weather can't be ruled out. >> maybe there's a bomb on board that blew the airplane up. highly unlickkely but possible. >> reporter: for now these families wait for news that might not come any time soon. they scan the manifest looking for unfamiliar names. >> it's life. we don't know what's going to happen. >> reporter: for others it's too much. the dreams of so many in limbo now. louise waits her for word of her fiance and five members of his family. they were going on vacation. >> he was supposed to be there last vacation before we got married. which was to be his last vacation with his family. >> reporter: but there are the

miracles too. the lucky ones. 23 people did not get on that plane who were scheduled to. >> we were supposed to be on that flight. it's eerie. >> reporter: this family can't believe it. ten of them ten, were supposed to fly here to singapore for new year's eve. but they all arrived late at the airport. here they are holding their itineraries. and they missed the flight. my mother can't stop crying one texted us, adding this is a special christmas gift from god that we missed the flight." on facebook, prayers of gratitude from chandra, supposed to fly with his wife and three kids but they canceled when his father fell ill. "thank you, jesus," he posted in indonesian, "your plan is so beautiful. our family avoided awful danger." for those who give thanks and for those who wait here these long hours are really about life about how precious it is. every moment.

and how fragile. >> our thanks to terry moran in singapore. next, luke bryan is ready to rock. tonight we're there as he takes his number one hits on

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2014 has been a huge year for luke bryan. but don't think the country boy has forgotten his roots. there's more than meets the eye to this sweet-talking singer. tonight, he's taking us on an unofficial tour of his favorite things, from his family to bow hunting, while getting ready for an unusual performance. our gloria riviera is crashing

the party, for our series "on the town." >> that's what i'm talking about. ♪ i got that real good ♪ ♪ feel good stuff ♪ >> reporter: from the tip of his boots to the back of his truck. ♪ backed up truck ♪ >> reporter: luke bryan is shaking his booty to the top of the country charts with songs like "that's my kind of night." ♪ that's my kind of night ♪ let me see it. >> wait now. we've got to get it together. >> reporter: nashville's reigning golden boy, he is having one hell of a good time. ♪ that's my kind of night ♪ >> reporter: and tonight is definitely his kind of night. >> what's up, "nightline," it's luke here. and welcome to the "that's my kind of night" tour. >> reporter: luke has 11 number one hits. >> picture? >> reporter: his latest album "crash my party" has catapulted him into an elite club. country music stars able to sell out stadiums. >> here we are, soldier field. >> reporter: we have an all-access pass.

crashing his tour in chicago. >> more of a blues town, isn't it? >> not tonight. >> reporter: and getting a ride in his bronco down on the farm. >> this is my bronco. >> reporter: that's how i roll. luke bryan drives me around. in his car. >> you know. >> yeah. >> thank y'all for everything you're doing. >> reporter: his team is turning this cow field near gainesville, florida, into a one-night concert venue. >> they're already lining up, look at this. >> lined up on a two-lane. sounds like a country song. >> reporter: growing up in a small town, it was tough for luke to see a show. now, along with big city stops, he's taking his tour to the farm. >> out here more than ever, people come up to us and it's like, this is our first concert. we're five minutes away from your back porch. >> reporter: accessing somebody's back porch that looks at the stage. they're setting up out there. >> they're probably frying up some chicken and making some sweet tea. are you nervous? >> i'm a little nervous. >> that's good.

>> can you tell i'm a little nervous? he tells you he often unwinds on tour bow hunting and offers to give me a lesson. ladies, it's a tough job. >> are you ready? >> i'm ready. okay, i'm ready, i'm ready, i'm ready. >> nice! i feel like i'm, you know, relating to people in a big city, but also relating to people in the country. i can have fans in brooklyn and hollywood and i can have fans right here in a cow pasture in gainesville, florida. >> reporter: has there been a moment where you thought, whoa. this is happening, and it's happening now. >> gosh, i mean, ten times a day. i'm walking in downtown new york city and see my face on top of a new york city cab. >> reporter: you take a selfie? >> i did. >> luke bryan! >> reporter: just last month, luke took home the cma entertainer of the year award. ♪ we've been listening to the radio all night long ♪ >> thank you, thank you god above. thank you so much. woo! >> reporter: hard to believe

that once luke nearly gave up on chasing his nashville dream. i love reading about your dad saying, you don't go, i'm going to fire you. >> right. >> reporter: when you look back are there any moments that you really pinpoint a time that you thought, maybe i should head back? >> well, like, i knew that i'd never tuck my tail and run. you know, the toughest thing was loading up the car and moving. >> reporter: we saw two sides to luke. he's a family man. a puppy dog around his wife and their two little boys. >> we manage it well. i'll fly out for a show, fly home and bring the kids out for a couple shows and head home. so, it's -- we make it work. ♪ holding a beer in my hand ♪ >> reporter: but he is also the fraternity rush chair of country music. singing about chasing girls and partying hard. his first hit in 2007, "all my friends say" became a frat boy anthem. ♪ what all my friends say ♪ >> reporter: it's a title that makes luke bristle, like that four-letter word in his industry, bro-country.

>> the bro-country thing, it really aggravates me. >> reporter: bro-country implies songs that are shallow as a beer glass and objectify women. >> i've hit a nerve. >> i think it's a derogatory term. don't judge me on one song, you know, judge me on a body, on a career. ♪ >> reporter: if that's the biggest controversy in luke bryan's life, he may just be able to stay here. in that sweet spot where fame is fun, even manageable. if he can stay grounded. >> i do a couple songs and it's a good warmup, i mean, good thing for the fans. little intimate. >> reporter: on the cusp of mainstream pop star status, one question for luke will be how true he stays to his country roots. ♪ baby you can crash my party any time ♪ >> reporter: for the high he's on now, there have been devastating lows. >> i know you guys have lost

that you used to drink a beer with. and i want you to think about them and have a sip of your beer. >> reporter: last month, luke lost his brother-in-law. but it was the tragic death some years ago of his beloved brother in a car crash, closely followed by the unexpected death of his sister, his only two siblings, that shook luke to the core. >> losing my brother and my sister -- yeah, that -- that took such a negative emotional toll on me and my family and my friends. and when good things happen to me through music, it helps my whole family. we can kind of go, well, you know, good things do happen too. any time i'm in a full arena, i mean, i just can't help but think that, you know, god, i know my brother and sister would be coming to a lot of these shows. ♪ drink a beer ♪

>> reporter: one thing he says that success has taught him is that true joy is possible after tragedy. but that doesn't mean he'll be doing this forever, or so he says. >> ten years from now will i be on stage dancing and -- no, i won't be. >> reporter: be careful. remember what mick jagger said, he wouldn't be doing it at 60. luke bryan, you may be out there shaking it -- >> well, i -- i would certainly say it will be much more tame. >> reporter: ready? feel good? finally, luke takes us straight to the stage. okay, one more booty shake for "nightline." >> booty shake? there it is. >> reporter: finally, he really did it! >> all right. anything in my teeth? >> reporter: let me check. no, you're good. just like that, we say good-bye to this peanut farmer turned uber-star. and 17,000 fans scream hello. ♪ kiss tomorrow good-bye ♪ >> reporter: for "nightline," i'm gloria riviera in gainesville, florida.

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for some with the money to spare, you can't put a price on sweet relief after partying too hard. but can you really pay your way out of a hangover? with new year's eve just around the corner, we set out to deconstruct this supposed miracle cure. new year's eve. the parties. that champagne. but the morning after can mean an ugly hangover, much like the

movie. >> i don't think i've ever been this hungover. >> i blacked out. it was like emptiness. >> reporter: but this new year, the hottest accessory to have on your arm may be an iv drip. now there are actually medical services like iv docs. >> hi! >> reporter: who promise an instant hangover cure. >> i was at a couple holiday parties last night. so, it's no wonder why i'm sitting here with an iv fluid bag right now in my veins. >> reporter: clients can make appointments online, talk treatment with a physician and within two hours, a nurse will bring an iv bag to their doorstep. >> i love that i can just call and make an appointment and say, come to my office, or, if i'm getting my hair dyed or cut, come to the hair salon. >> reporter: iv docs say they're carefully crafted cocktails will put the pep back in your step more effectively than h2o alone. >> when you have a sip of water, only about 40% to 60% of that water is actually absorbed into

your system. so, when we do this, we give the iv, it is going right into your system. >> reporter: but it will cost you. from $165 up to $300 for a 20 to 45-minute session. and that doesn't include tip. for devin, the hefty price tag is well worth it. >> really the instant gratification of someone coming to your home and not going to a hospital or a doctor's office. >> reporter: though it may seem like a quick fick, some doctors aren't buying it. >> the cost for a bag of saline or salt water is $4 or $5. typically it's marked up a several hundred dollars, $200 or more. couple with this, there are additives and some of these immune-boosting therapies they're touting have no proven medical benefit. >> reporter: but those who swear by the morning after ivs -- >> i feel amazing! >> reporter: say it's going to be a very happy and hydrated new year. we wish everyone a happy and safe new year. thank you for watching abc news. tune into "good morning america" tomorrow. and, as always, we're online at abcnews.com. good night, america.

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