A bundled-up Stefani takes son Kingston, 3, for a stroll in London. Plus: Rihanna, Justin Timberlake, Zac & Vanessa and more

ROCKET MAN

Talk about an explosive entrance! Kid Rock hitches a ride aboard a customized missile during a trip to visit troops in the Middle East on Saturday. Rock – who has now traveled overseas to visit the troops during the holidays five times – performed for service members as a part of the Air Force Reserve's Tour for the Troops 2009.