"Blonde ambition": it's not just the name of a Madonna album. It's also a phase every lady in Hollywood goes through, whether she was born a blonde and went redheaded for roles (like Emma Stone) or is taking a break from a lifetime as a brunette (like Jennifer Love Hewitt). Is it because blondes supposedly have more fun? Because everyone wants to feel like Marilyn Monroe for once? Whatever the reason, hair salons are doing brisk business is the dye department!
After the jump, check out 15 celebs gone blonde ... for good or for ill:
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