Well, this is disturbing. Evan has a genetic ligament-loosening disorder called Ehlers-Danlos Syndrome (Hypermobility Type). This allows his to bend, twist, and pull his joints in ways normal people can’t, like being able to play the piano backwards. He does a decent job for not being able to press the pedals, and, you know, playing backwards! The older video from 2010 has only gone viral now and is featured on Tosh.0 and SayOMG.