By Marianne Mychaskiw
Mar 19, 2012 @ 11:15 am
Alpha/Landov; Larry Busacca/Getty Images

Katy Perry just can't stop doing stuff to her hair! The singer changed her color in January when she dyed it blue, and now she changed the cut, debuting a clean bob and blunt fringe in London over the weekend. Perry joins Natalie Portman, Jennifer Lawrence, and Katie Holmes, who all added layered bangs to their looks recently. Tell us: Do you like her latest style? 

Plus, see more celebrity hair makeovers!

MORE: • Try on Katy Perry's Hairstyles • Should You Update Your Hair Color? • The Products Star Stylists Swear By • 9 New Ways to Wear a Ponytail