Zach Sobiech, a Minnesota teen who inspired millions through his battle with a rare bone cancer, has died at the age of 18.

Sobiech battled the terminal cancer, osteosarcoma, from the age of 14. Last year, a song he penned about his illness called “Clouds” went viral on YouTube,

“With heavy hearts, we are saddened to share that Zach Sobiech passed away this morning. 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,” says The Children’s Cancer Research Fund.

“Cancer may have taken Zach too soon, but he leaves a lasting legacy that most of us will never achieve. His message of love and hope delivered through infectious lyrics and memorable tunes have imprinted on the minds and hearts of millions around the world. Zach became a beacon of light and benevolence in a world that sometimes weighs too heavily. In turn, he received a flood of well-wishes that helped him, and his loved ones, smile through tremendous pain and worry.”

Zach recorded two albums worth of music, which helped raised money for awareness and research for his rare disease. His fight attracted nationwide attention, including that of many celebrities.

If you want to donate to Zach’s cause, you can do so here.