Teen with brain tumor who covered Katy Perry's 'Roar' dies

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The Wise family sent a statement to CNN stating "She died peacefully in her home surrounded by the extraordinary love of her family."

Wise, 16, recorded a version of the Katy Perry hit song "Roar" at a Toronto studio in September. The video wen on to receive more than 1 million views and even caught the attention of Katy Perry, who sent Olivia a video response.

"I was very moved and you sounded great," Perry told her in a video posted on YouTube in October. "I love you. A lot of people love you and that's why your video got to me. It moved everybody that saw it."

The Liv Wise fund was started in Olivia's honor in support of children living with brain tumors. The fund has raised more than $110,000 as of Tuesday.
"In many ways, Olivia has lived a shortened, but full life," her mother wrote in the letter to CNN.