The Roots' Ahmir "?uestlove" Thompson and Tariq "Black Thought" Trotter at a recording studio in New York. Their new concept album, undun (due out December 6th), centers on the death of a fictional young man from their hometown of Philadelphia. "The challenge is always, 'What have we never done before?'" says Thompson. "We've never been so disciplined to stick to a nonlinear narrative structure."