Last night on The Tonight Show starring Jimmy Fallon, Billy Joel joined the talk show host in a doo-wop video so entertaining that it was singled out by Tim Cook on Twitter.
Check this out. @jimmyfallon and @billyjoel with iPad and a cool app called Loopy HD. Magical. http://t.co/dWlZr6Lsm6 - Tim Cook (@tim_cook) March 21, 2014
Article Link: Tim Cook Highlights 'Magical' iPad Doo-Wop Duet Between Billy Joel and Jimmy Fallon