The singer works it for the camera outside David Letterman's late-night chatfest; Plus, Tom Cruise, Jamie Foxx, Brad Pitt and more

WISE GUYS

Naomi Watts, Mark Ruffalo and Laura Dern have a grand old time at the Hollywood premiere of their movie We Don't Live Here Anymore on Thursday. But the film (opening Aug. 13), which also stars Six Feet Under's Peter Krause, is no laughing matter: It's a drama about two sets of close friends whose marriages disintegrate after an affair.