GOLDEN VALLEY, Minn. - Zach Sobiech died on May 19, after being diagnosed with an incurable bone cancer, but he continues to inspire a nation.
On Wednesday, his song "Clouds" rose to the top of the iTunes chart.
Justin Baldoni, who directed and produced the documentary "My Last Days: Meet Zach Sobiech" tweeted after hearing the news.
"Every download goes to @ZachSobiech fund. I am overwhelmed...I don't even know what to say."
"Clouds" was released in Dec. 2012, six months after doctors told Sobiech and his family that he had less than a year to live.
Since it was posted Dec. 5, "Clouds" has received more than 4 million hits on YouTube.
All proceeds from the song go directly to the Zach Sobiech Osteosarcoma Fund.
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