Katy Perry's 39th Birthday Wish

Katy Perry closing 'Play' on Las Vegas Strip

Katy Perry celebrates 39th birthday: 'I'm so blessed

Katy Perry Calls Out Orlando Bloom & Daughter Daisy On Her Birthday

Katy Perry's Mom Is Running for a Seat on Santa Barbara's

Katy Perry Greets Grandma Ann Hudson On Her 96th Birthday After

Katy Perry Says She's 'Wishing for Peace' on Her 39th Birthday

Katy Perry Celebrates 39th Birthday with Wishes for “Peace”

Paris Hilton pens sweet birthday note to Katy Perry on her 39th

Katy Perry turns 37 and switches places with Ellen DeGeneres