Once upon a time, Jenny McCarthy looked like every other sex kitten in Hollywood. Her angled medium-length blunt cut adopted in recent years sets her apart from all the other Tinseltown bottle blondes, and it provides her with plenty of versatility.

This short shag is undeniably owned by Lisa Rinna. While her hairstyle is a great low-maintenance sexy look, she should bring the rest of her look more into alignment with her carefree coif.

Jennifer Aniston outgrew (or grew out, as it were) "The Rachel" and established her California-girl highlighted locks as her signature look. We'd love to see her experiment with her makeup colors once in a while, just to bring a little variety to her very successful style.

Much like Rihanna, Pink has established this punky, platinum short hairstyle as her own. There's just enough length on top to give her some versatility.

Nicole Richie has worked her hippie-chic persona just long enough that we sense a signature style in the making. While her use of braids and waves is pretty and innovative, the ultra-long hair and indecisive bangs are on the verge of taking over the scene. A little editing would make this signature style a winner.