A “devastated” Kelsea Ballerini is stuck at home instead of hosting the CMT Music Awards after catching COVID-19. The country music star announced her diagnosis Monday, just hours before she was supposed to take the stage with co-host Anthony Mackie. Despite already “feeling a lot better,” Ballerini, 28, will instead host from home, she said. “The incredible CMT team and my team have bought part of the CMT set to my house, to my little bubble, and set it up to where I can still host and perform,” Ballerini said. “It is certainly not what we had expected or planned for, but we are doing our dam…