Unless you were living under a big fat f'in rock yesterday you probably witnessed the internet explode at the prospect of a "Nirvana reunion" featuring Paul McCartney. Well it kind of did happen and didn't tarnish Nirvana in any way. I wouldn't exactly call it a reunion though, just an all star cast of musicians rocking out in a live setting. Paul is on stage and describes being invited to a "Jam session" and that's exactly what I'd call it. Dave Grohl, Krist Novoselic along with Pat Smear joined McCartney on stage at the all-star 12.12.12 Concert for Sandy Relief and performed a track they've titled "Cut Me Some Slack" live for the first time ever. Just watch it and hit play above. Pretty fucking cool if you ask me, I could watch Dave smash a kit all day.