Natives of Providence, Rhode Island, the brothers Barr (Brad and Andrew) unsurprisingly form the spine of the latest musical sensation to come out of Montreal, The Barr Brothers, who appeared on an early January episode of Late Night With David Letterman after their critically acclaimed self-titled debut dropped in October 2011.The story of how these brothers ended up in Montreal, though, is an intriguing tale of fate, fire, a dash of love interest and a mysterious harpist.