Add Yahoo as a preferred source to see more of our stories on Google. (Photo Credit: @katyperry/Instagram, Eric Charbonneau/Invictus Games Foundation via Getty Images) It has been months since Katy ...

All the latest news and updates on American singer Katy Perry, who is best known for songs including Firework (2010), California Gurls (2010) and Roar (2013). She was previously a judge on talent show ...