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Taylor Momsen -- who turns 18-years-old today -- has practically grown up before our very eyes. First, there was that adorable Shake 'N' Bake commercial, then there was the life-changing role on as Jenny Humphrey on "Gossip Girl". But like the show's character, Momsen isn't one to conform -- the actress has been focusing on her band, The Pretty Reckless, and leaving behind that good girl image. In the past the teen chose bright sundress and age-appropriate accessories, but now the blonde opts for gothic looks complete with corsets, thigh-high stockings, leather jackets and heavy, khol-rimmed eyes. Oh, did we mention she is now a fan of the pants-less trend?

So take a look at Momen's style transformation from adorable to edgy. And let us know, which Momsen do you prefer, good girl or punk rocker? Plus, check out who else loves lime-colored frocks, like Momsen's.

Meanwhile, Momsen's tough-girl look isn't for the weary. But if you're in the market for lined lids, check out these tips for purchasing the best eyeliner.

How to Create a Taylor Momsen Inspired Look