Welcome to another edition of Slacker’s “DNA” series—where we present you with a curated retrospective of an artist’s key tracks, collaborations, influences, and connections—their musical DNA. Since winning "American Idol" in 2005, Carrie Underwood has won 6 Grammys and sold over 15 million albums. Last year, she chalked up and incredible 18th #1 single, with "See You Again." This week, Carrie will celebrate her 31st birthday and we've assembled a station that features not only her biggest hits, but her entire musical family tree. This is Carrie Underwood: DNA.