Article Photos: Carrie Underwood wins ACM Entertainer of the Year 1/4

Carrie Underwood takes the stage to perform the National Anthem before the start of the NFL Super Bowl XLIV football game in Miami. Underwood can make history as the first woman to win two entertainer of the year awards when the stars turn out at the MGM Grand on Sunday, April 18, 2010 in Las Vegas. AP Photo