Carrie Underwood at Fox's "American Idol" 2011 Finale Results Show at Nokia Theater in Los Angeles on May 25, 2011. If there's two things 28-year-old Carrie Underwood is known for, it's her signature blond tresses and uber-short hemlines. The 5x Grammy winner likes her microminis and glittery sandals. What's special about country music's sweetheart is the way she can wear small tight clothes and never look anything but classy. Sing on, Carrie.