Paul McCartney and Nirvana, Eddie Vedder and Roger Waters, Michael Stipe and Coldplay's Chris Martin: Last night's 12-12-12 Concert for Sandy Relief was teeming with team-ups, and we've got the videos below. As these clips attest, the performers gave it their all, treating fans at New York's Madison Square Garden and an estimated 2 billion people around the world to the kind of concert that, sadly, only happens after horrible disasters. Whether you think McCartney, Dave Grohl, Krist Novaselic and Pat Smear turned in a true Nirvana "reunion" -- check out their premiere of the new tune 'Cut Me Some Slack -- you can't knock the foursome's energy. Likewise, 'Losing My Religion' is an obvious R.E.M. song, but Martin seemed genuinely enthused to sing the tune with one of his idols.

Check out all of the 12-12-12 Concert for Sandy Relief videos below, then hit us up in the comments section and tell us which was the best.

Watch Eddie Vedder Perform 'Comfortably Numb' With Roger Waters

Watch Michael Stipe and Chris Martin Perform 'Losing My Religion' Paul McCartney Perform With Dave Grohl, Krist Novaselic and Pat Smear