Members of the boy band one direction need a little rest this morning, after a seven-hour digital extravaganza. It was a marathon live streaming event, packed with special guests, performances and... See More
Members of the boy band one direction need a little rest this morning, after a seven-hour digital extravaganza. It was a marathon live streaming event, packed with special guests, performances and surprises. Abc's rachel smith got an exclusive look at it all and even got to participate in the action. Reporter: This youtube studio is ground zero for one direction's live stream. So, dozens of fans are waiting outside hoping to get a glimpse of the guys. Inside, a british viral invasion for nearly eight hours. Hello, nice to meet you. The members of one direction took turn hosting a worldwide internet marathon. I think if I were to sing a song now, it would probably be "wrecking ball." Reporter: Done. A radio disney viewing party. . Right now, I'm in shock. Celebrity messages from khloe kardashian, david beckham. As you can see we have self-instruments on station. Reporter: Down to earth supermodel offers fashionable advice. And studio visits from simon kuhl and piers morgan. Who snoopd into harry's personal life. Are you dating kendall jenner? We just went out to dinner. No. Reporter: Hiding into the hills stalking harry. Rachel from "good morning america." Reporter: I was invited into the british dream boat's web fest to help judge fan's inventions. Here's an idea for fans who never got a glimpse of their favorite band, one direction has a concert coming up on "good morning america." Look forward to seeing you guys tuesday morning on "gma." Rachel smith, los angeles. Amazing use of social media. Could you imagine news k kids on the block. This tuesday is going to be huge. I never had more requests from fans to get their kids into this show. The countdown is on to one direction's live concert. Right here on "good morning america" tuesday morning. It's a ticketed event. All of the tickets are gone. Sorry to rain on your parade, but you can watch it all on television. Which could be better. Coming up on "good morning
This transcript has been automatically generated and may not be 100% accurate.