Justin Bieber made a surprise performance, but it was One Direction's night.
Both Bieber and 1D release albums on Friday, Nov. 13, and both acts appeared at the BBC Radio 1 Teen Awards at the SSE Wembley Arena on Sunday. The boyband won Best British Group at the awards, as well as Best British Single for "Drag Me Down."
Ed Sheeran won Best British Solo Artist.
The show saw performances from Demi Lovato, Justin Bieber, Nick Jonas, 5 Seconds Of Summer, Little Mix and All Time Low.
Here's a roundup, including Bieber's unannounced set that kicked off the show:
Justin Bieber -- What Do You Mean?
Demi Lovato -- Confident
Nick Jonas -- Levels
Little Mix -- Love Me Like You
All Time Low -- Kids In the Dark
5 Seconds of Summer -- Hey Everybody!