Super Bowl XLIX halftime show - Wikipedia
Archivo:Katy Perry - Super Bowl XLIX Halftime 11.jpg - Wikipedia, la enciclopedia libre
Katy Perry's Left Shark: Here's the True Story
Dave's Music Database: Super Bowl Halftime Shows Ranked, 1967-2022
The Man Behind 'Left Shark' Explains His Viral Super Bowl Moment : NPR
Katy Perry, One Direction Wiki
Super Bowl 2015: Katy Perry Halftime Show Photos
Custom-made outfits designed by Jeremy Scott for Katy Perry's Super Bowl performance. : r/popculturechat
File:Katy Perry - Super Bowl XLIX Halftime 01.jpg - Wikipedia
NFL's 5 most watched Super Bowl games in TV history, by Delaware Sports Blitz