The BBC Radio 1 Teen Awards aired in London last night, with a couple of acts rather big in America stealing the British show.
First, in a special performance, Justin Bieber the smash "As Long As You Love Me," breaking it down acoustic style. Watch for yourself here and now:

One Direction, meanwhile, which recently knocked Bieber out of the record book, was the evening’s big winner.
The boy band took home a trio of trophies, as we’ve listed the winner below:
Inspirational hero of 2012: Ellie Simmonds
Best British single: One Thing – One Direction
Best British album: Up All Night – One Direction
Best British TV show: X Factor
Best British actor: Daniel Radcliffe
Best British music act: One Direction
Male hottie of the year: Tom Daley
Female hottie of the year: Emma Watson
Best British sports star: Tom Daley