PJ Harvey wins Mercury Music Prize

English singer PJ Harvey has won the 2011 Barclaycard Mercury Music Prize, becoming the first person in the history of the award to win it twice. The award, for Harvey's album "Let England Shake", was announced on Tuesday 6 September. Other nominees for this year's award included Tinie Tempah , Adele, Katy B, Everything Everything and Ann Calvi. The award is  decided by a panel of industry figures.