When Zach Sobiech’s song “Clouds,” was posted, in December of 2012, on YouTube it went viral, receiving over 2.6 million page views. Now Zach, who has terminal bone cancer, is getting a show of support from a group of celebrities who have posted their own YouTube video. In the video celebrities, including Colbie Caillat, Jason Mraz, Ashley Tisdale and Rainn Wilson, are shown lip syncing “Clouds.” Click on the links to see both versions and you can also view Zach’s video on our Playlist.