In coordinated black outfits, Kristen Stewart and Robert Pattinson step out for the hit film's London premiere. Plus: Britney Spears, Taylor Momsen and more

TAKING THE (CUP)CAKE

Jessica Biel shows off her cupcake-decorating talents Tuesday at a holiday party at the Children's Hospital in Los Angeles. The actress hosted the event – where she also did some face painting – on behalf of Make the Difference Network, a charity she co-founded with her father.