Florence And The Machine and Mumford & Sons also clocked up lots of plays
Boy also hacks Kelly Clarkson and Ke$ha's computers
Singer also reveals that her new album will be like 'bad kids going to church, having fun on a high level'
Justin Timberlake and Usher also signed up to campaign
Paramore, Thirty Seconds To Mars and Eminem are among the other winners
Lady Gaga And The Sociology Of The Fame is to be taught to students
Pair reportedly teamed up for 'Gnomeo & Juliet' film
Singer is forced to reschedule dates due to 'logistical difficulties'
Newcomer Alisa Apps lays down challenge
Singer joins John Lennon's widow for two songs