Start you should beware beware beware of a woman with a broken heart baby calling me crazy crazy baby still calling me baby calling me crazy crazy l. A. [ cheers and applause ] jimmy big sean. His new cd hall of fame comes out augs 27th. A bonus song at jimmykimmellive. Com. I want to thank ashton kutcher, melanie griffith, and i want to apologize to matt damon. We ran out of time. Nightline is next. Good night. [ cheers and applause ] tonight on nightline thats what makes you beautiful the screams, the swoons, the fans who camp out in line for days. Who could it be but one direction . Were all access and exclusive with the big business boy band on top of the world. When it comes to kung fu, there can be only one grand master. The man who taught bruce lee his killer moves. And now theres a movie. And miley cyrus stole the show at last nights vmas. But is all publicity good publicity . Can i get a hell no its twerking gone wrong on feed frenzy. Announcer keep it right here, america. Nightline is back in just 60 seconds. Good evening, and thanks for joining us. From Frank Sinatra to elvis presley, there have always been singers who work their female fans into a frenzy. Then came the beatles and a whole new level of star was born. Nowadays boy bands have become serious business. With millions, some even say billions of dollars at stake. At the top of the heap, one direction. Theyre part of a starmaking factory thats kept the hysteria at a fever pitch. Tonight an exclusive look at what its like to be the new teen idol. I hold you reporter every generation of girls has one, a boy band that rocks the heart of an era. One, two, three, four reporter in this moment that band is one direction. Hot in every sense of the word. Successors to new kids on the block. Step by step ooh baby reporter the backstreet boys. That makes you larger than life and n sync. Want to be a fool for you so big they did something even the beatles didnt do. You dont know why youre beautiful thats what makes you beautiful debuted at number one in the u. S. With their first album. Is that where the comparison ends with the beat lz . I mean, how do you feel . Do you feel uncomfortable about those i dont think its so much uncomfortable. Its just thats such a big thing to live up to. I couldnt put us in the same vein. Reporter we are permitted unprecedented access, allowed where millions of teenage girls would love to be. Their dressing room. Im going to go and get in the shower. Some jeans. Yeah. And a shirt. Reporter while harry goes to shower, niall is dressed by their stylist. Will you tell me what size you were . 3032. Reporter theres a sense this is a safe haven, a place they can reveal a little more like liam does. These were the first i ever got. Awful us except for niall have got these on our ankles. Just crosses. I dont know. Like the screws that keep you together. Its like a keep you grounded thing. My mum hates tattoos. What does it stay say . Thats one of the words from a new song thats not out yet. Hold it. Thats a big thats a big exclusive. Thats a line from the start of one of our songs. I figured it out. It does get scary sometimes. People dont realize that. It is scary when youve got loads of people screaming. Reporter theyre saying theyre just trying to do it their way. No matching outfits, no dancing. And so far its working. Theyve just wound up their soldout world tour. And won a vma last night for their summer hit best song ever. Want to say a massive, massive thank you to all of our fans. Reporter one direction is more than a band. It is a business. Stoked by a Merchandising Team of backpacks and tshirts, perfume and books. Could they be the first billiondollar boy band ever . There was an article the other day that said that you are about to become the first boy band to ever reach a billion dollars. Yeah, we read it. Reporter they try to keep it funny, no matter the topic. In fact, the lighthearted cleancut image of the band is part of their appeal. So is there a lot of pressure to stay this sort of squeaky clean like pg . Well, i dont know really. I think youve got to be yourself in this thing otherwise its going to drive you a bit nuts. We try to be ourselves and whether people like it because people are not thats why we dont go around like confessing to be role models or Something Like that because you know, we might make mistakes. Were the five idiots that they knew from three years ago and we still are. Part of its like its okay to make mistakes as long as you learn from them and dont keep doing them over and over again. Reporter three years ago harry was sweeping up a bakery and louie worked in toys r us. They were just five kids hoping for a break on the british reality show the x factor. After being booted as solo artists, their hopes were shattered. But simon cowell brought them back. Weve decided to put you through. Reporter giving them another shot. This time as a group. And though they only finished third, cowell signed them to his label anyway. This is just the beginning for these boys. Reporter cowells instinct paid off. Let me kiss you reporter not only can they sing, their good looks, natural charm and an explosion of social media, the band itself has 14 million twitter followers. 19 million on facebook. And more views on youtube than the population of britain. Well, all that has teenage girls screaming, crying, and swooning across the globe. Ive had less security going into a maximum security prison than trying to get close to you guys. When did you go to prison . Many, many times. As a legal correspondent. So does it get old, the whole thing of moving you from spot to spot . No, we just you know, partly you just kind of get on with it. We know we have a good laugh being on the road and stuff with each other. With your buddies as it were. So no, we have a good time. Reporter and that is another part of the magic. They like each other. A theme at the heart of their new documentary. This is us. Which debuted in new york tonight. And live while were young reporter but we got them all to ourselves. One of the principles of the band is the you play guitar but most of you guys are not playing instruments and not writing most of your music. This next album we actually wrote maybe id say 10. 10 . I thought you were going to say 10 songs. Oh, 10 songs. Theres only 13, 14 songs on the next album. So we wrote the majority of them and we worked very hard. Lyrics and music . A little bit of both. Lyrics and melody. All day and all night reporter the band insists the music matters most. But the heartthrob aspect of the bands appeal is not lost on anyone. Certainly not them. Can anyone show me a tattoo we havent seen before . What have we got . Im not going to stop you, harry. You are absolutely kidding but it was exciting for a minute. You cant blame a girl for asking. Reporter just the kind of harmless flirtation that keeps teens screaming. For all the high jinks many of their young fans say they see the boys as much more than a band. There is also a feeling among some of these girls that you literally saved their lives, that theyre going through a hard period with their families, that something horrible has happened. Do you feel a certain responsibility . Crazy like humbling comment to think that you could that you could change somebodys life. You dont really expect that sort of reaction, i guess. Were just humbled by it and, you know, grateful that we can have that effect on our fans. Yeah. I think its so nice to know we can do that. As you say were normal lads and were just were still growing. Yeah. Reporter what do you think the greatest misperception for me its more that nobody expects us to have any control. I was just thinking that. Over anything that we do. But actually its the exact opposite. And as long as we stay a band the more control we feel were getting over everything. Its very important for us to be over every part of the project really. Because the band is us at the end of the day. Reporter and while this is us does give us a vivid portrait of the bands antics, heres something we dont see. Their girlfriends. Its actually like wheres wally . Why . Why dont we see that part of your life . Weve never been a band that has like lied about having girlfriends. Weve always said that we have. You know, it wasnt like a thing that we kept back on purpose. It just yeah, that wasnt it didnt always include. It isnt because its bad for business . No, no, no. Because lying is bad for business. Yeah, lying is bad for business. Worse. Its more like we wanted to show like what the band is about. And obviously, our girlfriends are like personal to us individually, like so we didnt really want to show, you know, our individual personal lives. Reporter so naturally, i asked. All right. So whos available now and whos available. Available. Im available. Youre im taken. Youre taken. Taken. Taken too. I will find you. So what about the rumor that you have a crush . Is that true . Ellie goulding. Is the Ellie Goulding crush true . Shes a very pretty girl. Well, now she knows. You got the message out. Thanks for getting it out there. And harry, it was rumored you had a crush as well. Is that true . Me . On who . Come on. Really . Harry . Who . There are always rumors. Reporter crushes or no crushes, zane has big news. Just days ago he got engaged to his girlfriend, carrie edwards, a girl band member and another simon cowellcreated group, little mix. First of all, congratulations. Thank you very much. Are you sure you want to do this . Im definitely sure. Thank you for asking. And i dont suppose youre going to tell me when youre going to get married. Im not sure myself yet. So i wouldnt be able to say. You could be a minister. Wouldnt that be great . Minister or flower girl . What would you prefer . Certainly an enviable offer. While cynics will say the band is just a manufactured cash machine, their humor and innocence too good to be true, ask the band. Theyll tell you they just want to stay regular guys while having the time of their life. Does that get harder and harder . I dont think it does. I dont think so. Its not about its not about being who you were. Its about keeping who you were apart from who you are now. Well, one directions documentary, this is us, opens in theaters this friday, august 30th. Next up, the story behind a kung fu legend. The only thing anyone really cares about is that first day. Everyone will be stylin their faves. Love that but ill be bringing it every day, cause i went to jcpenney. I know, right . Check these out. They even have them in my signature color. Thats what im talking about. They have so much great stuff. Oh, sweet anyway, whats your first day strategy . [ female announcer ] come find your first day look at jcpenney. Too small. Too soft. Too tasty. [ both laugh ] [ male announcer ] introducing progressos new creamy alfredo soup. Inspired by perfection. [ female announcer ] at 100 calories, not all food choices add up. Some are giant. Some not so giant. When managing your weight, bigger is always better. Ho ho ho green giant kung fu movies might just be the original asian fusion, and bruce lee is the man who bridged the gap to American Culture with a popularity few could have predicted. But what about the man behind the legend . A new movie brings us the story of the master who started it all. Theres a reason they say its love at first sight. Heres abcs Rebecca Jarvis. Reporter say the words kung fu and one name comes to mind. Bruce lee. But the latest kung fu import hitting american theaters is the story of the martial artist who came before bruce lee and taught him the fundamentals of wing chun kung fu. Lees grandmaster ip man. The film is directed by wong kaw wai, known for films like 2046 and chung king express. And his themes focusing on loss and unrequited love. Featuring international store tony leung as ip man the grandmaster adds a healthy dose of intense fight scenes to create a film unlike anything youve seen in recent cinema. At the beginning i think i just need to train like a year before shooting but it end up i spend four years training. My fighting scene in the rain is the most difficult scene in my acting career. We take like 50 overnight in the rain. Every take and every angle we take 27 times. Reporter zi zang known for crouching tiger hidden dragon plays a female kung fu master torn between her love for ip man and her desire to avenge her fathers death. Theres one scene that was really difficult, was shot in the train station. Because the weather was so cold. I always think wong karwai can choose anywhere he wants. Like he chose the coldest possible. Every night my hands, my feet are always numb. Reporter the dynamic fight scenes kung fu movies have always captivated american audiences. And most will agree that ip mans most famous student, bruce lee, was the catalyst for the collision of asian and american pop culture. Lee and kung fus influence can be seen all over modern pop culture. From keanu reeves in the matrix. I know kung fu. Reporter or in the work of a Truly American filmmaker like quentin tarantino. Bruce lee was like he was a genius to us. Everybody across the world know like michael jackson. You know what i mean . Hes just bruce lee. Reporter or even with a group of rappers from staten island, new york. Swift all up in the highrise who built a musical empire around a persona culled from a 1983 martial arts film titled shaolin and wu tang. Kung fu always had a part of my life because we used to watch the karate flicks. They used to come on at 3 00 and come outside and act like we the snake or something. Sss, sss. You know, do all of that. Reporter even those from china can appreciate why americans would share their love of kung fu films. Everyone wants to fly. And wants to have this, you know, special ability. Reporter the grandmaster echoes the thematic Old School Martial Arts movie. Its one storyline i can relate to because a lot of these stories is about revenge or brotherhood or loyalty. My swag on reporter an inspiration that stuck with raekwon through a career that spanned over two decades with his latest single released last week. More money more problems you got to be kidding and proof that while bruce lee may have passed 40 years ago the story of his grandmaster, ip man, will continue to shape the kung fu legend that endures today. What is the true spirit of kung fu . I love to call it love at first fight. Reporter im Rebecca Jarvis for nightline, new york. The grandmaster opens everywhere this friday. Next, what was miley cyrus thinking last night on the vmas . Our take, next. 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Download the expedia app and your next trip could be on us. Expedia, find yours. In tonights feed frenzy, at last nights Video Music Awards there were plenty of moments that would normally have set tongues awagging. But they got overshadowed by miley cyrus. We cant stop and we wont stop she twerked so hard she seemed to make the entire audience wildly uncomfortable. She seemed pretty pleased. Miley continued the madness by putting her spin on this summers anthem, Robin Thickes blurred lines. Okay now he was close tried to domesticate you but youre an animal baby its in your nature its not clear that everyone liked her take. The vmas cap off a summer filled with fun tunes. But who has the best summer song