Get Jennifer Aniston's style: Long and straight
Rather than Jennifer's 2002 flat-head style, Beckerman suggests updating the ironed look by adding a bend at the end, which will create a slight movement. "Grab the flat iron and flip it under or out with a slight wrist twist." Solano's Blue Sapphire Professional Flat Iron with removable comb ($85, www.metrobeauty.com) will do the trick. A conditioning treatment like L'Oréal Studio Line Straight-Up Multi-Vitamin Formula Ironing Gel will prevent your hair from getting damaged. ($4, www.loreal.com)

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Get Cameron Diaz's style: Layered with bangs
"Bangs are in," confirms Beckerman. But the trick to Cameron's chic shag style, he says, "all depends on where the bangs are cut." Regardless of whether your forehead is big or small, bangs can be cut anywhere so that "nobody knows where they start or end." Go like Cameron, with a shaggy style that's healthy and controlled with lots of long layers. To get the look, a great blowout is a must. Try Revlon's Swivel Chord Hair Dryer ($20, at drugstores) and ask your stylist for long, "five- to six-inch layers, creating soft lines with pieces that hug your face," Beckerman says.

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Get Kelly Osbourne's style: Crazy and colored
If you want wild, crazy color like Kelly's, Beckerman suggests using an at-home semi-permanent color like XtremeFX's Color Shock, which comes in Smoldering Orange, Hot Red, Penetrating Purple, or Blue Denim, and will rinse out after a few shampoos ($15, www.clairolxtremefx.com). "These are great for people who want color, but are afraid," he says. But depending on your real color, and the one you want, it may not work for you. "They have no ability to go darker, they can only [get hair] lighter," Beckerman says.

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