Olivia Wise, a teen with brain cancer, recently visited a studio for the first time to record her own version of the upbeat anthem -- even though she wasn't feeling so great herself. With just a piano in the background, Olivia slowed the song down into a delicate, yet powerful ballad.
Watch Olivia's beautiful recording in the video above.
Here is some background from the YouTube description:
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.
Also on HuffPost:
When you need a quick breather, there's no place like <a href="http://calm.com">calm.com</a>. With a soothing nature backdrop, the site allows you to choose between two-minute and 10-minute meditations, with our without music and auditory guidance.
HuffPost Good News
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Make Everything OK
A technologically-advanced way to make everything in life good again.
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Tumblr's 'Positivity' Page
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We're of the school of thought that cute animal videos and GIFs pretty make pretty much everything in life better. Look no further than <a href="http://cuteroulette.com">Cute Roulette</a> for all the adorableness your heart may desire.
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Filled with inspiring videos and touching stories, Hooplaha is one of our new favorite happy-places. Check out <a href="http://hooplaha.com/">the site </a>and sign up for their "Daily Smile" newsletter to start your day off right!
Get your daily dose of whimsy on <a href="http://weheartit.com/">We Heart It</a>, a happiness-inducing website with thousands of user-created inspiration boards.