It was a busy weekend on the Brothers of the Sun tour as Kenny Chesneywelcomed rock legend Steve Miller and Two and a Half Men star Ashton Kutcher to shows. Sunday night in Oakland, California, Miller hopped on stage to perform his classic hit "The Joker" for an enthusiastic crowd. The night before, Ashton -- decked out in a Stetson, boots and pearl snaps -- was in the crowd in Anaheim, California.