Dave Grohl and the surviving members of Nirvana, Krist Novoselic and Pat Smear, returned to the stage to perform a Nirvana set with the help of four guest vocalists at the Fireaid benefit concert.

Dave Grohl paid tribute to his one-time Nirvana bandmate Paul McCartney (technically, it's true!) with a rendition of "Live and Let Die" at the Love Rocks NYC benefit concert Thursday night ...