BOISE, ID--(Marketwired - July 15, 2016) - Mountain America Credit Union is proud to support the return of Grammy-nominated musician LT Smooth to the Idaho International Summerfest for a series of special performances, including a special "Dancing Under the Stars" event Friday, July 15, at Hemming Village in Rexburg, Idaho. LT Smooth is also the main performer at matinee and gala performances at Madison High School Performing Arts Center on July 15 and 16.