f all the rap artists who emerged from Atlanta during the late 2000s, B.o.B — who was only 17 when he signed his first major-label record deal — was one of the most unique. His borderline eccentricity and artistic mind, belied by his music's conventional Dirty South sound, raised his stock above his Southern comparisons and welcomed comparisons to OutKast (specifically that group's offbeat half, André 3000). B.o.B also chose his...