Your Feel Good Video Of The Day: The Sad Story Of Zachary Sobiech, With A Hopeful Ending [VIDEO]

Although Zachary Sobiech's video already has over 3 million views, this is the first time I've heard about it. And we need to keep passing it around until everybody sees it.

Zach was diagnosed with osteosarcoma, a rare bone cancer, when he was 14. He was told by his doctors in June 2012 that he had months or possibly a year to live. So in December he wrote the song "Clouds". Not only is it an amazing song all by itself, but he recorded it with only months left.

Sobiech also worked closely with the Children’s Cancer Research Fund, who he partnered with for his own Zach Sobiech Osteosarcoma Fund.

This video became so popular that a group of celebs made their own video lip-synching to it. This tribute video includes Bryan Cranston, Anna Faris, Sarah Silverman, Ed Helms, Jenna Elfman, and Jason Mraz .