Nikki, 27, is a hair chameleon — she’s dyed it everything from bleach blond to bright red, yes, even bubble gum pink. “I was a makeup artist in Los Angeles for MAC cosmetics and really emulated the lifestyle and look,” she says. One of the Scottsdale, Ariz. native’s most daring ‘dos: this razored auburn cut with heavy bangs and bleached highlights. But now with an upper-level job in the publishing industry, Nikki has since decided to go relatively au natural — enjoying a much more low-maintenance ‘do, which she styles with Aveda Be Curly Curl Control, $19.