updated 05/20/2013 AT 2:00 PM ET
•originally published 05/20/2013 AT 4:30 PM ET
Minnesota teen Zach Sobiech, who wrote “the during his bone-cancer fight, died Monday morning. He was 18.
“With heavy hearts” the Children’s Cancer Research Fund announced the news on its website, writing, “Zach was at home and at peace with those he loved most. Zach’s life ended just as he lived, embraced by the love of his family, friends, grace and music.”
Sobiech, who celebrated his 18th birthday on May 3, was diagnosed with osteosarcoma when he was 14, and was told by doctors last June that he had possibly less than a year to live. That December, he released “Clouds.” The song about facing death got more than three million YouTube views. Just this month, Rainn Wilson led a group of celebrities lip-syncing in a moving tribute video.