Super Bowl XLIX: Katy Perry makes crowd roar with spectacular half time performance, London Evening Standard
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It's Official: Katy Perry Headlining Super Bowl XLIX Halftime Show – The Hollywood Reporter
Katy Perry Superbowl Half-time Press conference - Mirror Online
List: Super Bowl Halftime Shows From 2000 to Now – NBC Los Angeles
Watch Katy Perry Roar and Soar During Super Bowl Halftime Show – Rolling Stone
Review: Super Bowl 2015: Katy Perry packs it all into fiery halftime show - Los Angeles Times
Super Bowl XLIX: Katy Perry Halftime Show, Left shark. Right shark. All awesome. 🦈🦈 Katy Perry's iconic Super Bowl XLIX Halftime Show!, By NFL
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