With her pooch in tow, the Gossip Girl star celebrates her 21st b-day on the New York City set of her show. Plus: Ashlee Simpson, Lindsay Lohan, Paris Hilton and more


Kid Rock's performance is off the chain! The singer joined Southern rockers Lynyrd Skynyrd on Good Morning America's summer concert series on Friday in New York City for a raucous run-through of the band's hit "Sweet Home Alabama."

Sign up for our daily newsletter and other special offers.
    Choose your newsletters
Thank you for signing up! Your request may take up to one week to be processed.
    see all newsletters