The Rolling stones just kicked off their "50 and counting tour this past Friday at The Staples Center in Los Angeles. The audience and the staged were filled with famous fans. Keith Urban joined the Stones on stage for a a version of their song "Respectable". No Doubt's Gwen Stefani also joined Mick and the boys on stage for a great version of "Wild Horses"

The star packed audience included celebrities  Pierce Brosnan, Melanie Griffith, and Kelsey Grammer, as well as Jack Nicholson.

Check out the video of Wild Horses with Gwen Stefani.