Singer Taylor Swift is up against four boys at this year's Country Music Association Awards. The Mine hitmaker will battle against Keith Urban, Blake Shelton, Jason Aldean and Brad Paisley for the Entertainer of the Year award at the ceremony. The category of Female Vocalist of the Year includes Taylor, Carrie Underwood, Sara Evans, Martina McBride and Miranda Lambert. Blake is up for Male Vocalist of the Year against Brad, Keith, Kenny Chesney and Jason. The Band Perry, Rascal Flatts, Lady Antebellum, Zac Brown Band and Little Big Town are the nominees for The Vocal Group of the Year. Brad Paisley and Carrie Underwood will co-host the 45th annual CMA Awards, which airs live in the US from Nashville on November 9.