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iHeartRadio Music Festival - Day 1 - Press Room

LAS VEGAS, NV - SEPTEMBER 23: Singer Carrie Underwood poses in the press room at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on September 23, 2011 in Las Vegas, Nevada. (Photo by Isaac Brekken/Getty Images for Clear Channel)

Carrie Underwood Turns 30: Her Style Evolution

The country singing sensation turns 30 on March 10. As a special birthday treat, we're looking back at her changing style – from her days as an “American Idol” newbie to her high-fashion looks now that she’s a bona fide star.