(nme.com) - Robbie Williams has reported been offered ?1.5m for a one-off gig.According to the Daily Mirror , the singer has been asked to headline the Sandness Festival in Norway.However despite the potentially massive payday, the paper does not believe the former Take That man is on the verge of a comeback.They quote a source "close to the singer" who explained: "It would probably the easiest money he'll make in his life but it's touch and go whether he'll say yes. We'll have to wait and see."Williams has recently blogged that he has enjoyed time away from being in the public eye and has stated "there definitely won't be a tour any time soon".