9 Great Songs You Didn't Know Katy Perry Wrote

Katy Perry launched her career as a Christian pop star named Katy Hudson in 2001, which gave no indication that by 2008 she would take the pop world by storm with the debauched, raucous and cheeky album One of the Boys that featured feisty, electro-pop-rock songs named “I Kissed a Girl” and “Ur…