John Legend is a wonderful singer by anyone's standards, but I'd say he was less than his best during this impromptu performance at Universal Studios Sunday. Wife Chrissy Teigen said John was slightly sauced on vino and felt like belting one out. She didn't think anyone was paying attention until he went on stage and loudly introduced himself. That's when Chrissy decided that she just had to share the moment with the Twittersphere, who loved it - let's just say for more than musical reasons. Enjoy and discuss.