All Grown Up & Hot

Even Scarlett and Mischa had their awkward teen years. See just how far they and others (Katie! Lindsay!) have come. By Janice Morris

AVRIL LAVIGNE

THEN: A white tank and necktie were the Ontario native's trademark look when she debuted stateside in 2002. "I don't go around trying to sell sex," she said.
NOW: At 21, she's engaged (to Sum 41 frontman Deryck Whibley) and embracing her "great body" – as well as her inner fashionista, modeling Gucci and Chanel in Harper's Bazaar.