Back from Malawi, the singer has a girls' night out in London. Plus: Tom & Gisele, Taylor Swift, Faith & Tim and more

COLOR HER HAPPY

Katy Perry makes a colorful curtain call while greeting fans on the street Monday after playing the first New York show on her Hello Katy tour at The Fillmore NY @ Irving Plaza. For her encore, the singer headed to nearby Lucky Strike Lanes for a late-night bowling game.