Rainn Wilson, Bryan Cranston and more sing for YouTube sensation Zach Sobiech

Zach Sobiech quickly became a YouTube sensation in December after his music video "Clouds" made its premiere. The 17-year-old is dying of the rare bone cancer osteosarcoma and only has weeks to live, so he turned to music to help him say goodbye to his friends and family. His positive attitude and catchy jingle have touched many, including the folks over at Rainn Wilson's Soul Pancake channel.

Wilson got together some of his closest friends in Hollywood to put together their own video to honor Sobiech. Everyone from Bryan Cranston, Chris Pratt, Ashley Tidsale and Mark Duplass to Jason Mraz, Phillip Phillips, The Lumineers and Sarah Bareilles participated to help raise money for The Zach Sobiech Osteosarcoma Fund. Their video response to "Clouds" is posted above, and is really wonderful.

Sobiech's original video has over 2.6 million views. The positivity from both Sobiech and the folks at Soul Pancake is definitely inspiring. Watch the original "Clouds" video below.

Photo/Video credit: YouTube