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Carrie Underwood
Credit: Seth Poppel/Yearbook Library, Jeffrey Mayer/WireImage

Happy birthday, Carrie Underwood! The American Idol alum and country superstar turns 32 today. Birthday aside, the blonde bombshell has a lot to celebrate---from sweeping up four Grammy awards and garnering countless other accolades, to starring as the lead in the live production of the Sound of Music and launching her first-ever (and really cute!) fitness line, the new mom is setting the bar high for aspiring performers and entrepreneurs. To commemorate the star's awe-inspiring career and birthday, we're taking a look back at her changing looks over the years.