The school's kindergarten classes learned how to sign "Happy Birthday," with the help from their teachers Mrs. Allyssa Hartsfield and Mrs. Amy Hershman, teacher's aide Shelly Lucas and Ridner.

Deaf Campers Who Performed 'Happy' in Sign Language Get Ready for Their Next Big Hit: 'Deaf People Can Achieve Anything' PEOPLE will have the first look at the camp's 2015 music video in August. By.