2008 Academy of Country Music Awards (27 images)

Singer Carrie Underwood appears backstage after winning Top Female Vocalist at the 43rd Academy of Country Music Awards at the MGM Grand in Las Vegas on May 18, 2008. (UPI Photo/Daniel Gluskoter)

Kellie Pickler performs live during the second annual Academy of Country Music Charitable Fund's New Artists' Party for a Cause at the MGM Grand in Las Vegas on May 17, 2008. (UPI Photo/Roger L. Wollenberg)

LeAnn Rimes signs autographs as she arrives for the 43rd Academy of Country Music Awards at the MGM Grand in Las Vegas on May 18, 2008. (UPI Photo/Roger L. Wollenberg)

Nicole Kidman, who is pregnant, and Keith Urban arrive for the 43rd Academy of Country Music Awards at the MGM Grand in Las Vegas on May 18, 2008. (UPI Photo/Roger L. Wollenberg)