On May 2, YouTube sensation Ethan Walmark was featured alongside his parents, Allison and Michael, during the 8:00 a.m. hour of the Today Show. Ethan, 6, was diagnosed with autism four years ago. A recently posted video of him performing Billy Joel's "Piano Man" has rapidly gone viral on the internet, earning Ethan praise from Joel himself. The Walmark's are a top team in the Westchester/Fairfield Walk Now for Autism Speaks which is on June 3, 2012. You can visit their fundraising page here!