She also sings a snippet of a new song during speech
Plus Kanye West and Taylor Swift both return to the awards following 2009 bust-up
Singer thanks her fans for crowning her 'Twitter queen'
Florence + The Machine, MGMT, Gorillaz also nominated
Teen singer overtakes 'Bad Romance' with his 'Baby' single
'Bad Romance' singer reportedly 'on her own' in wrangle with former producer and boyfriend Rob Fusari
Singer beats Barack Obama and Britney Spears in the fame stakes
'I've baked a cake with a bitter jelly,' says star
Singer explains she was lined-up for 'This Is It' dates
Singer to play venue on December 16