children's hospital roar 2

*Among the dozens of lip-sync videos for Katy Perry’s current single “Roar” was this gem from the folks at Children’s Hospital at Dartmouth-Hitchcock in New Hampshire.

The ailing kids – along with nurses, doctors, support staff, families and even administrators – came together and filmed this rendition, which was shot in one day. The footage captures almost all the kids at CHaD who were “feeling well enough to get out of bed and dance,” according to Londonderry Patch.

Funds raised through the sharing of the video will benefit the CHaD Hero Half Marathon. So far, the response has been astounding – to the tune of more than $650,000.

Check out the video below and grab some tissue: