The singer-actress and husband Marc Anthony show their allegiance to the Dolphins. Plus: The Jonas Brothers, Christina Milian, Ashlee Simpson-Wentz and more


And, action! Jay-Z and Alicia Keys reach for the sky on Thursday while filming their "Empire State of Mind" video in New York City's Times Square. The duet – a tribute to the Big Apple – is currently No. 10 on the Billboard Hot 100.