According to The Guardian, Paul McCartney will join Dave Grohl and Krist Novoselic of Nirvana on stage tonight at the 12-12-12 concert at Madison Square Garden. Does this make any sense? Not particularly, especially after these quotes in the British newspaper by Macca:  "I didn't really know who they were. They are saying how good it is to be back together. I said: 'Whoa? You guys haven't played together for all that time?'

"And somebody whispered to me: 'That's Nirvana. You're Kurt.' I couldn't believe it."

The 12-12-12 show for Hurricane Sandy relief begins at 7:30 tonight. Turn on your TV, radio or computer on time, because Bruce Springsteen & the E Street Band go on first. Here's a list of where to watch, and how to give.

Previously: RIP, Ravi Shankar Follow In the Mix on Twitter