Katy Perry  was the center of attention when she emerged from a glass ball on stage at the 2014 Grammy Awards in LA on Sunday, performing her hit song "Dark Horse" in the show's first hour. Katy roared onto the red carpet in a Valentino  gown that featuring music notes. The pop star's brother, David Hudson, joined in on the fun as her date. Katy is no stranger to the Grammys, having been nominated 11 times in the past five years. However, she has never been able to snag a trophy to take home. She had a great night at the show, though, and at an afterparty, she got a sweet congrats from her boyfriend, John Mayer  with a high five.
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After the Grammys, Katy's boyfriend, John Mayer  high fived her at an afterparty.