According to PageSix.com, "speculation from inside the band's camp said the singer had missed his flight to Sundance for the performance, but that didn't stop his bandmates from literally asking the crowd if they wanted to have a go."

"It's was crazy, they were inviting anyone who wanted to get up sing," an onlooker told PageSix.com. - More including some video

Preview and Purchase Velvet Revolver CDs