When she was healthy, Olivia Wise would sit at her school locker and sing for her friends. Now the 16-year-old, who's dying of a brain tumor, has gotten Katy Perry's attention with her version of "Roar."
CNN Showbiz — When she was healthy, Olivia Wise would sit at her school locker and sing for her friends. Now the 16-year-old, who's dying of a brain tumor, has gotten Katy Perry's atte... more info