Over the weekend, Katy Perry showed off her new peach and pink hair color, but she also gave everyone a good look at her cute new A-line bobbed hair, which is shorter in the back than in the front. Why would you ever have an asymmetrical-length cut, you ask? It's actually a very clever way to get the volume and body of short hair while still looking mid-length. And Katy is not the only Hollywood lady to try this easy-care cut. Emily Blunt and Keira Knightley, among others, have been spotted wearing the perpetually chic style.