The documentary Horses: Patti Smith and Her Band premiered Monday night at the Tribeca Film Festival at New York's Beacon Theater and Patti brought along some famous friends to join her and her band in a post-screening performance.
Bruce Springsteen joined Smith on guitar and vocals on "Because the Night," his song that she famously made a hit. The set-closing "People Have the Power" featured Springsteen and Patti's pal, former R.E.M. singer Michael Stipe. You can find video of the performances of YouTube.