Kelly Clarkson, John Legend & Adam Levine Return for ‘The Voice’ All-Star Showdown | Billboard News

Kelly Clarkson, John Legend and Adam Levine return for a new season of The Voice: Battle of Champions. They share who they’re most excited to see return, what fans can expect from their performances together and more! John Legend: We’re also doing the all-star showdown this season, which is different. We’re bringing back some of […]