It's been a big week for our favorite celebrities, who've been hitting up premieres, movie sets, and runway shows! Blake Lively made an appearance at Milan Fashion Week, making us all wish we could book a flight straight to Italy. Brad Pitt was over in the UK, where he sported a much shorter, much cuter haircut on the set of his new movie. Meanwhile, back in the states, newlyweds Kate Bosworth and Michael Polish attended an event in San Francisco, and Ben Affleck and Justin Timberlake got the giggles at the premiere of their new film, Runner, Runner!
That's not all the fun to go down with your favorite celebrities this week — click through the rest of the best snaps!