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9 Songs You Didn't Know Katy Perry Wrote for Other Artists

The 'Queen of Camp' has lent her pen to several talented pop peers.

Katy Perry is a titan of pop music. Her hit songs including "I Kissed a Girl," "Firework" and "California Gurls" have made her one of the most influential voices in the genre, winning her five American Music Awards and 14 People's Choice Awards. She's been dubbed the "Queen of Camp" by magazines such as Vogue and Rolling Stone.

Well, before Perry kissed a girl and liked it, she released an unsuccessful Christian music album at the age of 16 — the self-titled debut Katy Hudson (2001). Afterward, she moved to Los Angeles and adopted a secular style, completing her transformation by taking her mother's maiden name, Perry. Her vocal range dips about as low as a woman can go, and she uses it to command a rocker front woman voice that warms up any genre she tackles, from disco to pop to rock.

It's impossible not to be at least somewhat familiar with Katy Perry's music. But you may not have known that she's written several songs for other artists, including Kelly Clarkson, Selena Gomez and Britney Spears. Perry wrote most of these songs for herself. But when they were axed from the final album, she handed them off to talented peers with the chops to match her powerful voice.

Keep going to see nine songs you didn't know Katy Perry wrote for other artists.

READ MORE: Katy Perry and Sister Angela Faced Financial Struggles as Kids. Now They're Giving Back to Underserved Communities