"One two, shake those germs off, y'all," DJ Mel called out near the top of his Living Room Dance Party on Saturday, playing his own hype man for the roughly 2,500 viewers logged onto his Facebook Live stream. It was the third go-round for the hottest social distancing get-down in Austin, Austin360's Residency of the Month for April. The ace party rocker had hit a solid rhythm, whiplash-mixing a choice blend of retro pop, dancefloor destroyers and off-the-wall selections that work way better than they should...