More than 100 million viewers watched the 30-year-old singer kick the show off with her huge hit ‘Roar’, as she made her way into the University of Phoenix Stadium in Glendale, Arizona on top of a giant golden lion.
The 12-minute show saw her squeeze in four costume changes and two guest appearances.
Lenny Kravitz joined her on stage for ‘I Kissed A Girl’ and Missy Elliott put in an appearance to perform ‘Get Your Freak On’ and ‘Work It’ with the singer.
Elsewhere there were dancing sharks for ‘California Gurls’, a giant chess board for ‘Dark Horse’ and more pyrotechnics than you could shake a pom pom at.
Katy finished the show with the inevitable ‘Firework’, as she was lifted 30 feet into the air as hundreds of fireworks were let off around the stadium.
Watch Katy’s full Super Bowl halftime show below...