Diaz maintains a cheery outlook on a stroll through freezing New York City. Plus: Chace Crawford, Zac & Vanessa, Justin Timberlake and more


U2 frontman Bono and his fellow bandmates (literally) pave their way into the Ed Sullivan Theater in New York City on Monday. The Irish rockers, whose latest album No Line on the Horizon hits stores March 3, will play on The Late Show with David Letterman all week long.