Paul McCartney and Idris Elba has gone up for auction to benefit the S.T.O.R.M charity.McCartney and Elba recently filmed a BBC special together to mark the release of the former’s new solo album ‘McCartney III’.While filming, the pair signed a Cort-made acoustic guitar that they played during the show, which aired on the BBC last weekend.McCartney’s message reads “Hey Idris! Cheers Thanks, Paul McCartney 2020”, while Elba wrote: “Wow!! Keep Safe!! Idris Elba”.I shared the stage with