Adult size Katy Perry Left Shark Costume - 2 sizes The official Katy Perry Left Shark costume is now available! Purchase the most recognized Shark costume in the industry today. Definitely the star of the Super Bowl Half Time show in 2015 was the unexpected but glorious appearance of the Left Shark. He stole our hearts as he danced and grooved to his own beat in front of the entire world. What more is there to say about this incredible fish?