A team of Deaf campers and staff from Deaf Film Camp 2014 produced this incredible version of Pharrell's "Happy" in American Sign Language (ASL).
The music video was part of a project where deaf instructors taught campers to integrate ASL translation into a song and learn the art of dance choreography.
All 24 students at the camp helped to make the video, either starring in it or working behind the scenes.
Their amazing efforts paid off: The video has got more than 300,000 views since it was released two weeks ago.