Lady Antebellum's tour bus caught fire Thursday morning as the group was on their way to Dallas for Sunday's Academy of Country Music Awards.  According to reports, the bus was about 45 minutes from AT&T Stadium, where the awards ceremony will be held, when a tire blew and the back of the bus caught fire.  There were no injuries reported as a result of the incident, but mechanics will be under a crunch to repair the tour bus before the group's Wheels Up Tour, which is scheduled to kick off on May 1st in Lubbock, Texas.  The group will perform as scheduled, meanwhile, at Sunday's ceremony at the Dallas Cowboy's home stadium.