Olivia Wise, the Toronto teen with an inoperable brain tumor, passed away Monday, just a couple months after she fulfilled her dream of getting behind the microphone in a recording studio.
Her cover of Katy Perry's "Roar" was one of the most inspiring things the Internet had seen a long time.
Wise's video gained more than a million views in the month after it was uploaded to YouTube. In the video's description, her parents described her condition:
"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."
Her parents said this week that Wise died peacefully at home "surrounded by the extraordinary love of her family."
Since Wise's video went viral, a charity called the LivWiseFund, which was set up in her honor, has recorded thousands in donations. The charity will help fund research for teens with brain tumors.
Her story will also continue to inspire. When Katy Perrysaw the video Wise made, the pop star responded with her own message to Wise and her family.
You can read more about Wise's story on CNN.com.