When it comes to celebrities and plastic surgery, some are more willing to admit they've done it (or at least that they want to do it), while others are against it completely. Of course, there are some who may have gone under the knife, but they'll never fess up to it.

Celebrities tend to change their hair a lot, even the ones who have a relatively steady look. I've put together a few of my favorite color chameleons. Which hue flatters them more?

It looks like Gabrielle Union's colorist has been a busy individual. We've seen Gabrielle go from a dark brown hue to subtle highlights to chunkier blond streaks - all in the past month.

For the premiere of The Runaways, Frederic Fekkai stylist Adir Abergel gave Kristen Stewart a punky pompadour. It's an unusual hairstyle that was perfect for the opening of a movie about rock 'n' roll.

Pair a sultry-toned peach hue that dominated looks of the late 1970s with a modern smoky eye, and you've got Chloe's universally flattering (and sexy) runway look. "It's the makeup of French actresses - Dominique Sanda, Carole Bouquet - very expensive and ultra-luxe," said lead makeup artist Charlotte Tilbury.