To kick off the show, the singer rode out onto the field during halftime show atop a giant prism metal tiger and immediately began singing her hit single, “Roar.” Katy Perry Praises Taylor ...

This spring, pop star Katy Perry will hit the road ... Night (T.G.I.F.).” Perry’s fourth album “Prism” spawned two more chart-toppers with “Roar” and “Dark Horse.” ...