Bell bares some skin at the L.A. premiere of Couples Retreat. Plus: Jon Hamm, Rihanna, Ed Westwick & Leighton Meetster and more

TAKE THE CAKE

Let him eat cake! Though he doesn't turn 36 until Oct. 10, Mario Lopez gets a jump-start on his birthday festivities – with the help of his body-baring birthday cake – celebrating at the Borgata Hotel's club mur.mur in Atlantic City on Saturday.