Ariana Grande arrives at the Radio Disney Music Awards 2013 at the Nokia Theater in Los Angeles, CA on April 27, 2013.

Ariana Grande at the 2013 MTV Movie Awards at Sony Studios, Culver City in Los Angeles, CA on April 14, 2013.

Ariana Grande at Nickelodeon’s 26th Annual Kids’ Choice Awards at USC Galen Center in Los Angeles, CA on March 23, 2013.

Taylor Swift at the Capital FM Summertime Ball 2013 held at Wembley Stadium in London on June 9, 2013.

Taylor Swift arrives at the Billboard Music Awards 2013 at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, NV.

Taylor Swift arriving for the Brit Awards 2013 at the O2 Arena in Greenwich, London on February 20, 2013.

Taylor Swift at the 55th Annual GRAMMY Awards at Staples Center in Los Angeles, CA on February 10, 2013.

Taylor Swift arriving at the 2011 American Music Awards at the Nokia Theatre, L.A. Live in downtown Los Angeles, CA on November 20, 2011.

Taylor Swift at the 48th Annual Academy Of Country Music Awards Arrivals at MGM Grand Garden Arena in Las Vegas, NV on April 7, 2013.

Taylor Swift at the 39th Annual People’s Choice Awards at Nokia Theater L.A. Live on January 9, 2013 in Los Angeles, California.