Craving a change? Find out how Jennifer Lawrence and 15 other beauties transformed everything from their hair to physique to attitude
Best Wig-Out: Rihanna
The singer, 24, rocked 12 weave styles in 2011! "She chooses looks based on her mood," stylist Ursula Stephen, who texts ideas back and forth with the beauty, tells Us. "The blonde is her favorite."
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