Children’s Hospital Performs Katy Perry’s ‘Roar’ [VIDEO]

Tear jerker alert!  A Children's Hospital At Dartmouth-Hitchcock Medical Center performs Katy Perry's 'Roar'. The hospital in Lebanon, N.H., made the video for its annual CHaD HERO Half Marathon & Ripcord 5K, according to its Facebook page. This tear-jerking clip features  awesome lip syncing, dancing, and lots of roaring.