New Orleans legend Dr. John – a.k.a. Mac Rebennack – teamed up with the Black Keys' Dan Auerbach to record his latest album, Locked Down. "Watching him come up with parts was just so awesome. Mac is fearless," says Auerbach, who produced the set. "Like that Farfisa solo on ‘Revolution' – that’s a first-take solo. He just goes for it, man. He told me he hadn’t played a Farfisa organ since 1969 when he was with Doug Sahm, and he killed it." Locked Down won't be in stores until April 3rd, but you can stream "Revolution" today.