Who is this guy? Some long-lost psychedelic rocker from a never-released Nuggets box? A New Orleans hepcat emerging like a hip-shaking chupacabra from a swamp of sonic voodoo? Nope — according to this here bio, Brian Olive is a former member of The Greenhornes and the Soledad Brothers gone solo, and if he’d come along about 35 years earlier we’d be listening to him now on oldies radio instead of Bob Welch or Canned Heat, or the Grateful Dead at their woozy prettiest. Think high cooing vocals and airy harmonies above bluesy, gum-smacking grooves that simmer and shimmer, augmented on phenomenal cuts like “Back Sliding Soul” by arrangements full of ear candy — underwater boogie piano, rump-rocking percussion, shrapnel blasts of rubbery guitar and greasy sax and Esquivel-like electro-doinkage (wait, is that really a bagpipe?). Olive co-produced his new album Two of Everything partly in Nashville with The Black Keys’ Dan Auerbach, and it sounds like a lifetime’s record collecting went into every track. Watch for him at Bonnaroo performing with the tantalizing duo of Auerbach and Dr. John.