The singer enjoys an evening out in London. Plus: Eva Longoria, Katy Perry, George Clooney, Taylor Kitsch and more

  • FANTASTIC FOUR photo | Colin Firth, Emily Blunt, John Krasinski

Credit: Charley Gallay/Getty

Updated: Thursday Feb 23, 2012 | 05:00 PM EST

FANTASTIC FOUR

Colin Firth and wife Livia mingle with Emily Blunt and John Krasinski while hosting a Ermenegildo Zegna and Vanity Fair benefit dinner – in support of Oxfam America and Livia's eco-friendly initiative the Green Carpet Challenge – at L.A.'s Chateau Marmont on Wednesday.