Olivia Wise, a terminal cancer patient who recently captured hearts around the world with her version of Katy Perry’s “Roar,” died on Monday.

The 16-year-old from Toronto was diagnosed with an aggressive form of brain cancer almost two years ago. In September, she recorded her version of the pop star’s hit song, and posted the video on YouTube.

The video has since become a viral hit.

In the six weeks since it was posted, it's accumulated more than a million views and even caught the attention of Katy Perry herself, who then reached out to the teen in a video message.

"Olivia Wise, I can hear you singing with the angels now," Perry tweeted late Monday night. "Your spirit & strength has inspired me & so many others... May you rest in peace."

Olivia's family has put the song up for sale on iTunes. Proceeds will go to The Liv Wise Fund, which contributes to brain cancer research and support for children with cancer.

The fund has raised more than $100,000.


The video shows Olivia sitting in a wheelchair in the middle of the studio, singing softly at first and struggling with her breath.

In a message that accompanied the YouTube video, Olivia's cousin wrote that at the time of the recording, the teen couldn't walk or stand.

"Olivia is a fighter and has gone through the fire, in fact, she was going through the fire when she recorded this song," her cousin wrote. "But you wouldn't know it because she was dancing right through it."