The JoBro and Gomez have a swinging good time in Los Angeles. Plus: Beyoncé & Jay-Z, Angelina & Vivienne, Victoria Beckham and more

TAKES THE (CUP)CAKE!

First producer, now baker! Kim Kardashian saves room for dessert Friday while celebrating the launch of her very own cupcake mix, Va-Va-Va-Nilla, at Famous Cupcakes in Beverly Hills.

See which other stars are sweet on cupcakes