Boy band One Direction brought the center of London to a standstill on Tuesday evening (20Aug13) as they launched their new tour film 1D: This Is Us in Leicester Square.
Band members Liam Payne, Harry Styles, Zayn Malik, Niall Horan and Louis Tomlinson walked the red carpet at the Empire cinema as more than 70,000 fans screamed out their names.
The group, which came together on U.K. talent show The X Factor in 2010, teamed up with documentarian Morgan Spurlock - the man behind the films Supersize Me and Where in the World is Osama Bin Laden? - to make the new movie about life on the road.
Simon Cowell, who created the band, joined celebrities like Ronnie Wood, Little Mix, JLS and Lily Cooper at the premiere, and told reporters he "felt like a father" to the bandmates, referencing the fact he's about to become a real-life first-time dad.
The music and TV mogul, who was joined by ex-girlfriends Mezhgan Hussainy and Sinitta on the red carpet, boasted about how proud he was of the group and the movie, adding, "I always dreamed when I was kid one day I could produce a movie, so this is fantastic. It's the first one and hopefully won't be the last... It was an incredible experience.
"Anyone who wants to know what it's like to be in a band needs to watch this movie."
Director Spurlock was also at the big event and admitted it was "the greatest movie premiere I have ever been to in my life".