08/23/2012 03:06 pm ET Updated Oct 11, 2012

Blake Lively Beauty Evolution: The 'Gossip Girl' Has Been 50 Shades Of Blonde (PHOTOS)

Though she hails from a showbiz family, Los Angeles-born Blake Lively apparently had no interest in seriously pursuing acting. A change of heart led this high school class president and cheerleader to audition for a role in 2005's "The Sisterhood Of The Traveling Pants," a part she secured despite having little acting experience. In 2007, Lively went on to star in the breakaway hit CW series "Gossip Girl," thus firmly planting herself in the pop culture sphere.

While she's slowly adding film roles to her resume, including "Green Lantern" and "Savages," her beauty look has stayed consistently blonde and beachy over the years. That's not to say her fashion and makeup choices haven't become more refined. The former Chanel spokeswoman, Vogue cover girl and new face of Gucci's Permiere scent, even has a Louboutin shoe named after her. And her dating life hasn't been too shabby either: The 5'10" actress has been linked with not only her "Gossip Girl" co-star Penn Badgley, but Leonardo DiCaprio, and most recently, ScarJo's ex-husband Ryan Reynolds.

As Lively turns 25 this Saturday (August 25th), we're taking a look back at her many tousled and tanned looks over the years. Check those out in the gallery below, and don't forget to vote for your favorite.

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Blake Lively Beauty Evolution