The cozy couple continue their joint birthday celebration in Sin City. Plus: Sienna Miller, K-Fed and more

ALL-STAR JAM

Michael J. Fox and Sheryl Crow stage a rock 'n' roll performance at a Beatles-themed fund-raiser for the Michael J. Fox Foundation in New York on Saturday. The benefit, which attracted other celebs such as Denis Leary, Muhammed Ali, Martin Scorsese and Elvis Costello, raised more than $5 million for Parkinson's research.