11:30 a.m. Update:Read TIME’s report from backstage at the epic 12-12-12 concert, and check out the 12 most iconic images from the music marathon How many music legends can you gather under one roof?

This image released by Starpix shows Eric Clapton performing at the 12-12-12 The Concert for Sandy Relief at Madison Square Garden in New York on Wednesday, Dec. 12, 2012. Proceeds from the show will ...

With less than an hour until the blockbuster "12-12-12" Concert for Hurricane Sandy relief kicks off from Madison Square Garden in New York City, a few tickets for the live simulcast at Frank Theaters ...

Last night was the big Hurricane Sandy relief benefit concert at Madison Square Garden, and while it was mostly a positive affair — Paul McCartney dusting himself off once more and diving back into ...

The sold-out 12-12-12 concert was shown on 37 television stations in the United States and more than 200 others worldwide. It was to be streamed on 30 websites, including YouTube and Yahoo. The ...