She's got the eye of the tiger, and that's why Katy Perry‘s "Roar" music video has skyrocketed to 4 billion YouTube views, ...
Katy Perry took the energy up a notch, launching into Roar right after Harry’s speech. Dressed in a futuristic silver cut-out outfit, she powered through a high-energy medley of Dark Horse ...
Find yourself singing along to Katy Perry every so often ... make your way to the stage at 9.30. And get ready to Roar, sing Dark Horse, dance to Firework, and so much more.