Back When I Knew It All is the sixth studio album by the American country music duo Montgomery Gentry. It was released by Columbia Records Nashville on June 10, 2008 (see 2008 in country music). The album's title track, which is also its lead-off single, became their fourth Number One on the Billboard Hot Country Songs charts in July 2008. Following it was "Roll with Me", which also reached Number One in December 2008. After it came "One in Every Crowd", the third single.