Last night was the epic (and epicly long) 12/12/12 concert benefiting victims of Hurricane Sandy, which was probably the coolest collection of rock acts and appearances since Live Aid. While the highlight of the concert for me may have been Paul McCartney's closing "Live And Let Die" fire show (I just can't get over how amazing it was live), the most notable act of the night was McCartney fronting what was essentially a Nirvana reunion. It's the first time that Dave Grohl, Kurt Novoselic and Pat Smear have played publicly together in almost 20 years. But instead of playing a Nirvana song, (which lets be honest, woulda been sorta weird, but we all woulda freaked over it anyway) they played a new song called "Cut Me Some Slack." And it rocked.