This follow-up to the Backstreet Boys" successful 2005 comeback marks their sixth studio effort, and probably the most varied presentation of material in their canon. The trademark harmonies are still in full, glorious effect, minus one voice, that of Kevin Richardson, who left the group to pursue an acting career, enriched by a more rocking sound and the presence of live instrumentation instead of programmed keyboards and beats. The first single, Inconsolable, is a piano-laced weeper that fans will love from beginning to end.