Katy Perry Performs For Obama At America Forward

Obama Rally in Milwaukee Katy Perry Part Of Me

Beyonce Performs National Anthem Ceremony President Obama Inauguration 2013

The Rolling Stones Katy Perry Beast Of Burden

Fan Dances with Katy Perry During Las Vegas Concert

Katy Perry performs 'Firework' at Biden-Harris inaugural

Rock in Rio: Katy Perry - "Waking up in Vegas" -- Live Performance

Katy Perry Performs Live Roar at 2013 Grammy Nominations Concert

Beyoncé The Mrs Carter Show Made In America

Katy Perry Unconditionally American Music Awards 2013

Katy Perry in Red Carpet American Music Awards 2013

Beyonce Performance Diva Live Concert

Katy Perry Falls in Cake

Katy Perry Firework Performance USNA

Katy Perry American Music Awards 2013 Red Carpet

Katy Perry Performs Wide Awake Live 2012

Grammys 2012 Katy Perry

North West Joins Katy Perry On Stage At Katy Perry’s Las Vegas Show

Katy Perry - California Girls ( MTV World Stage 2010)

Katy Perry Performing Roar at Grammys 2014

Katy Perry - Swish Swish (Live on The Voice Australia)

Grammys Awards 2015 -- Katy Perry Performs "By The Grace of God"

Katy Perry Concert Candy - UK Tour

Katy Perry performs Live Walking on Air on SNL 10122013

GMA Katy Perry Announces Roar with Katy Perry Contest

Katy Perry with a surprise guest...LOL