Not only did Madonna hit her thirteenth UK number one with single 4 Minutes yesterday (she first hit the UK charts an astonishing 23 years ago), but shes also just been announced as the headlining act at the UKs biggest free concert, Radio Ones Big Weekend on May 10 this year. The massive gig in Maidstone, Kent will be Madonnas first performance on a UK stage since the Live Earth gig last July. She might be 49, but were expecting a seriously cool not to mention limber performance from the woman who took two hours out of her ELLE shoot to exercise and says I feel great, if anything Im probably speeding up. Is she superhuman? Were seriously starting to wonder.