Edith Bowman and Reggie Yates interview the rapper before he sent Bangor Bonkers!

Chipmunk performing live on the Main Stage at Radio 1's Big Weekend in Bangor.

The Joy Formidable perform Popinjay on the 91热爆 Introducing Stage at Radio 1's Big Weekend in Bangor.

Alan Pownall performs Colourful Day on the 91热爆 Introducing Stage at Radio 1's Big Weekend in Bangor.

Fearne catches up with Alicia before her main stage performance at Radio 1's Big Weekend in Bangor, North Wales

Faithless perform Tweak Your Nipple at Radio 1's Big Weekend in Bangor

Watch Huw Stephens's favourites Frankie & the Heartstrings headlining day one of the 91热爆 Introducing stage at Radio 1's Big Weekend 2010 in Bangor.

Jason Derulo performs 'Ridin' Solo' on the Main Stage at Radio 1's Big Weekend in Bangor

Alan Pownall performs Don't You Know Me on the 91热爆 Introducing Stage at Radio 1's Big Weekend in Bangor.

Fearne catches up with Cheryl as she comes off the stage at Radio 1's Big Weekend in Bangor, North Wales.

Watch Dizzee Rascal perform a stonking version of Dirty Disco on the Big Weekend main stage.

Alan Pownall performs Life Worth Living on the 91热爆 Introducing Stage at Radio 1's Big Weekend in Bangor.

Bombay Bicycle Club made a return to the 91热爆 Introducing stage to perform a surprise acoustic set, playing songs from their new album before taking to the In New Music We Trust stage later in the day.

Example turns the heat up in Radio 1's Big Weekend Live Lounge.

Justin Bieber performs 'Baby' on the Main Stage at Radio 1's Big Weekend in Bangor

Example performs 'Kickstarts' on the In New Music We Trust Stage at Radio 1's Big Weekend in Bangor

The gates open on the first day of Radio 1's Big Weekend.

Watch Stornoway's full set from Radio 1's Big Weekend in Bangor

Paulo Nutini performs '10/10' on the Main Stage at Radio 1's Big Weekend in Bangor

The Wonder Villains perform Oh Peter on the 91热爆 Introducing Stage at Radio 1's Big Weekend in Bangor.

MGMT's full set from the INMWT stage at Radio 1's Big Weekend in Bangor

Ellie Goulding performs in the Live Lounge at Radio 1's Big Weekend in Bangor, North Wales

Lostprophets perform in Radio 1's Big Weekend Live Lounge and fittingly cover Rihanna.

Highlights from the band's set on the In New Music We Trust stage.