
Taylor Swift (center) performs at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013, in Las Vegas. Miss Swift won eight of 11 awards, including top artist and top Billboard 200 album for "Red." (Chris Pizzello/Invision/AP)

Taylor Swift (center) performs at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013, in Las Vegas. Miss Swift won eight of 11 awards, including top artist and top Billboard 200 album for "Red." (Chris Pizzello/Invision/AP)

Taylor Swift performs on ABC's "Good Morning America" in New York on Tuesday, Oct. 23, 2012. (Charles Sykes/Invision/AP)

Taylor Swift performs on stage at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)

Taylor Swift performs on stage at the 55th annual Grammy Awards on Sunday, Feb. 10, 2013, in Los Angeles. (Photo by John Shearer/Invision/AP)

Taylor Swift arrives at the 40th Anniversary American Music Awards on Sunday, Nov. 18, 2012, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

US singer Taylor Swift performs during the 2012 MTV European Music Awards show at the Festhalle in Frankfurt, central Germany, Sunday, Nov. 11, 2012. (AP Photo/Michael Probst)

US singer Taylor Swift performs during the 2012 MTV European Music Awards show at the Festhalle in Frankfurt, central Germany, Sunday, Nov. 11, 2012. (AP Photo/Michael Probst)

US singer Taylor Swift performs during the 2012 MTV European Music Awards show at the Festhalle in Frankfurt, central Germany, Sunday, Nov. 11, 2012. (AP Photo/Michael Probst)