Celebrity pictures: Emma Watson, Ricky Gervais, Justin Bieber

Today's celebrity pictures include Justin Bieber being berated by police before moving his illegally parked car in Beverly Hills. Also in LA, actress Amanda Seyfried walks her dog, Russell Brand runs errands, Emma Watson catches a cab and Gwen Stefani celebrates Easter with her family.

In New York, Tina Fey poses with Cookie Monster, Elmo and Oscar the Grouch on the set of 30 Rock, a grinning Ricky Gervais arrives for his appearance on The Late Show with David Letterman and in Sydney, Zac Efron attends The Lucky One premiere.

And in London, Cher Lloyd performs at the Indigo O2 and in Port Talbot, Wales, Hollywood couple Michael Sheen and Rachel McAdams attend The Gospel of Us premiere.