Dave Grohl, Pat Smear and Krist Noveselic have been in a nostalgic mood this past Summer and this Fall. There have been a couple of times now that the surviving members, Dave Grohl, Krist Noveselic, and Pat Smear have all played together, it seems, as a tribute to their once amazing band. Obviously, with no Kurt Cobain, it’s always bittersweet. This past weekend, as the Foo Fighters played Cal-Jam in California, Grohl and his former Nirvana band mates did it again, and this time, they had one amazing guest vocalist, the one and only Joan Jett! Check out the video! Awesome.