In 2012 Gruff Rhys embarked on a solo 'investigative concert tour' through the heart of America following the route taken by his distant relative John Evans. Every night he presented songs augmented by a power point presentation that detailed his relative's unbelievable history, along with any new piece of information that had come his way during the day. He was ultimately looking for Evans's lost unmarked grave. Along with many major cities the tour took him to play shows at the Mandan and Oma...