12-12-12 Concert: McCartney, Reunited Nirvana Electrify Crowd With New 'Cut Me Some Slack'
Supergroup plays new track on night featuring sets from Kanye West, Alicia Keys, Chris Martin and the Rolling Stones.
By Gil Kaufman
Paul McCartney performs at 12-12-12 Concert
Photo: WireImage
Source: http://www.mtv.com/news/articles/1698835/121212-concert-sandy-paul-mccartney-nirvana.jhtml