Noel Gallagher has revealed that he recently teamed up with Paul McCartney for a duet at Stella McCartney’s 50th birthday party.According to the Oasis chief, the pair performed The Beatles‘ ‘Birthday’ song and classic hit ‘I Saw Her Standing There’ after Gallagher played his own set at the fashion designer’s party at Cliveden House Hotel in Buckinghamshire last week.He told Matt Morgan’s Funny How? podcast (via The Sun): “It wasn’t like I was there and they pulled me out of the crowd like a