Who said "I believe in standing up for what you believe in."?

This quote is attributed to Katy Perry.

I believe in standing up for what you believe in. - Katy Perry

"I believe in standing up for what you believe in."

Katy Perry Justice

Pop Singer Songwriter American Born 1984 (age 42)

"I'm just trying to change the world, one sequin at a time."

"Just be yourself, there is no one better."

"If you don't have any shadows, you're not in the light."

"Do what makes you happy, be with who makes you smile."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."