When her class were doing a Christmas concert, one girl whose parents are deaf went above and beyond to include them in the festivities. She's clearly a lot better than the fraud interpreter working at Mandela's memorial
Lori Koch uploaded the video of her daughter doing sign language while singing with her classmates (who are less competent signers) to YouTube, where it's recieved more than 100,000 views in less than 24 hours.
Click through for more sign language interpreters getting it right (and wrong)
, including interpreters nailing it during national emergencies and rap concerts, and Natalie Portman signing 'tampon' by mistake.