And yes its a big deal to me! At first I wasn't down with it mainly because she didn't ask me first. But it has grown on me. Via TooFab:
The former star of "The Hills" showed up to a signing of her latest book, "The Fame Game," last night at The Grove in Los Angeles -- where she was sporting a shocking new look.
Instead of the lighter locks we're used to seeing on LC, the back of her head was hot pink.

