Critics' Choice winner Jessie J performs her hit 'Do It Like A Dude' live and acoustic from the BRITS 2011 launch
The Wanted perform their BRIT Award nominated single 'All Time Low' at the 2011 awards launch event
BRITs nominees Ellie Goulding & Tinie Tempah perform their hit 'Wonderman' at the BRITs 2011 Launch
Rihanna performs "Loud (Medley)" featuring 'Only Girl In The World', 'S&M' and 'What’s My Name'.
MasterCard British Album of the Year winners - Mumford & Sons light up the O2 Arena with an acoustic performance of their single 'Timshel'
The winners of the Best International Album and International Group Awards treat the O2 to a performance of their new single: "Ready To Start"
Cee Lo Green & Paloma Faith perform "Forget You' - and Paloma suffers a wardrobe malfunction...