The pop star and the supermodel share a moment together in London. Plus: Jen & Marc, Posh, Gwyneth and more

3 of 17

LUCKY DRAW

Not a cold or frigid temps can keep Gwyneth Paltrow from hosting a jewelry auction at New York's St. Regis Hotel on Thursday. The cause? To raise money for the city's first American Cancer Society's Hope Lodge, which offers free housing for adult cancer patients. Paltrow is back on the scene after taking more than two years off to focus on motherhood, having just signed on to the new movie Iron Man.