During the 12-12-12 Sandy Relief concert on Wednesday, December 12, stood-in for 's so that the grunge band could perform once again 18 years after the death of their frontman. Drummer , bassist Krist Noveselic and second guitarist Pat Smear, joined the former Beatle onstage to dish-out "Cut Me Some Slack", a song made for Grohl's "" documentary. The tune which rings of pure rock music is something that could have been released by Grohl's band, .
McCartney closed the six-hour long mega-concert, which featured such rock and roll royalties as , , and , by opening his set with "Helter Skelter", a song he wrote with and recorded by . Midway through his set, which included hits from when he was with The Beatles, Wings, and from his solo career, he brought out Grohl and company for the rare reunion piece.