This Katy Perry Cover WILL Make You Cry

We love Katy Perry's anthemic track "Roar" — it's the perfect pick-yourself-up-and-feel-powerful song. Particularly when we're shamelessly belting it out in the car. And clearly, Canadian teen Olivia Wise agrees.
Wise is battling brain cancer, and needs all the inspiration she can get, so we can see how this song might come in handy. But, she's not just singing along in the car. Her friends and family wanted to show their love, so they pooled their resources and booked her some time at a local studio to record her own cover.
Oh YouTube, the description below the video clip reads: "She couldn't walk or stand. She didn't have her full breath or the energy she used to, and she was managing her new pains and new limitations. While her physical condition was rapidly fading, her spirit remained untouched. Olivia is a fighter and has gone through the fire, in fact, she was going through the fire while she recorded this song, but you wouldn't know it, because she was dancing right through it. She is an inspiration, a champion, and my hero. This is her Roar."
We certainly can't hear the pain in her voice. Olivia sounds incredible, and it's difficult to get through her beautiful rendition without tearing up. Her friends and family are hoping that Katy Perry will see her video so Olivia might have the chance to meet her musical icon. We'll be taking to Twitter to do our part, but in the meantime, grab your Kleenex and hit play below.

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