Julia Roberts brings her bright smile to Paris, plus Cynthia Erivo, Prince William, Keira Knightley and more. From Paris to Milan and everywhere in between, see what your favorite stars are up to.

Instead of the usual button-down dress shirt, Musk wore a single-breasted charcoal peacoat, which he opened wide at one point to show off the words “tech support” in large letters on a black T-shirt.