Ritchie has a lads' evening out with Jude Law and Robert Downey Jr. in London. Plus: Jennifer Lopez, Britney Spears, Ashley Olsen and more

MUTUAL APPRECIATION

Also at the Fashion Group event: Ashley Olsen, offering the perfect complement to Calvin Klein designer Francisco Costa. "When I first moved to New York, he’s the guy that really captured my eye," the fashionista – who modeled a sophisticated column dress from his line – told PEOPLE.