The heartwarming video above shows 5-year-old Claire Koch at her school's holiday concert, surprising her deaf parents by signing the songs. The class sings a rousing rendition of "Rudolph the Red-Nosed Reindeer" and a Christmas-themed version of the song "B-I-N-G-O," and Claire stands out for her enthusiastic singing and signing.

Claire's mother, Lisa Koch of Clearwater, Fla., posted the video of her daughter to YouTube, generating thousands of views.