Krist Novoselic bass

Paul McCartney talked about being “in the middle of a Nirvana reunion,” at last night’s 12/12/12 Concert at New York's Madison Square Garden.

The former Beatle brought out Nirvana’s Dave Grohl and Krist Novoselic and along with Pat Smear they played “Cut Me Some Slack, ” which will be on the soundtrack of Grohl’s movie, Sound City.

Grohl of course played drums while Novoselic rocked out on his Krist Novoselic Signature RD Bass.