Ahead of his two-night performance at Mohegan Sun Arena in Uncasville, CT on Kane Brown‘s Blessed and Free tour, Walker Hayes spent the day in the area entertaining his six kids at a nearby trampoline park, filled with go-karts, games and more. “Here, it’s so fun, and it’s fun to go do things to get the energy out,” the singer sat with HollywoodLife backstage ahead of the show. “It’s been the…