From the spacey opener "Weight of Love," which pulls out a grandiose Pink Floyd-style guitar solo before the vocal even starts, it's clear that The Black Keys are thinking big. The album's '70s classic rock vibe gives the Keys a bigger, more cosmic sound, while studio wizard Danger Mouse wraps electronic swirls around Dan Auerbach's mountain of guitars. And just when we're into the psychedelic groove, the soulful strut of "Gotta Get Away" proves the duo's roadhouse R&B roots are still right there.