Girl Battling Cancer Sings Katy Perry's Roar

Favorite
- -

Even though Olivia Wise's struggle with brain cancer has left her unable to stand or take deep breaths, she took her time in the recording studio to record Katy's hit. Check out Katy's response.

Download the new Cheezburger app for a chance to win a PS4! in Cheezburger 's Hangs on LockerDome