Count folk-pop duo the MacDonald Bros. among the myriad young acts launched to fame via the reality TV phenomenon of the early 21st century. Siblings Brian and Craig MacDonald were born and raised in Ayr, Scotland. They began harmonizing as toddlers, and in high school collaborated in a Queen cover band dubbed Cobra. While older brother Craig later worked as a bank teller, Brian toiled as a bedding salesman. At night, they moonlighted at a local golf club Brunston Castle, singing at weddings and other society functions. In 2006 the MacDonalds auditioned for the U.K. television...