After completing a tour with son Kingston in tow, Gavin Rossdale's three-year-old is yearning to rock out. For real. "At the last benefit we were at, he wanted to get on stage with me and sing," Rossdale told Popeater at the 'Rock the Kasbah' event benefiting Virgin Unite and the Eve Branson Foundation. "Yes he was a little upset with me at the Neil Young Benefit. I told him we can, but we have to practice a bit first."

While rocking out will happen eventually, Gavin and Kingston have been bonding over Halloween planning. After the jump, Rossdale dishes about their costumes.