Transformation

Naomi Watts is known for taking on challenging roles, so it's no surprise that she's an adventurer when it comes to her locks. "I'm someone who likes to change her hair," she told InStyle. "I hate it being the same all the time." While the Pantene spokesmodel moves easily between edgy pompadours and retro-inspired waves, she never takes things out of her comfort zone. "Always be natural," she has said. "That's what my mother told me when I was growing up."

Watts at the premiere of Dangerous Beauty. "I can assure you, I did my own hair and makeup," she told us of the low-key look. "My hair changes all the time, and this was a short haircut."