Cropped styles may be having a moment in Hollywood, but this week, stars were going crazy for long, cascading waves that were swept to the side. At a party celebrating her River Island collection, Rihanna wore her undercut style with loose curls slung over her right shoulder. Abigail Breslin showed just how grown-up her style is with vintage-inspired waves paired with red lipstick. And Petra Nemcova slicked the sides of her hair down while allowing her length to swing free. These are three different ladies with three different takes on the look, but whose did you prefer?