The 32-year-old pop singer Katy Perry, who has written songs for Selena Gomez, Kelly Clarkson, Britney Spears, Iggy Azalea and Ashley Tisdale, at the 59th Grammy Awards in Los Angeles.
The 32-year-old pop singer Katy Perry, who has written songs for Selena Gomez, Kelly Clarkson, Britney Spears, Iggy Azalea and Ashley Tisdale, at the 59th Grammy Awards in Los Angeles.