"Cut Me Some Slack" is a rock song by Paul McCartney and former members of Nirvana.
[1] Grohl, who was making a documentary about the history of recording studio Sound City Studios in Van Nuys, Los Angeles, assembled musicians to write and record songs for the film.
[2] Among them were McCartney, the former Beatle; plus two musicians who had played with Grohl in Nirvana: Krist Novoselic and Pat Smear.
"Cut Me Some Slack" began as a jam between these four; McCartney later described it as a "Nirvana reunion".
[2] In addition, Krist Novoselic referred to the partnership as "Sirvana",[3] a portmanteau word of Sir Paul McCartney and Nirvana.