Bootsy Collins‘ endless alter-egos - Boot-Tron, Zillatron, King of the Geepies, Bootdullivan, Bedroom Bootsy and, of course, Bootzilla - have always battled for space inside the funk pioneer's brain.

Funk jammers Lettuce just released their new album Unify last week via Round Hill Records (order yours), and one of the songs, “Keep That Funk Alive,” features a guest appearance by one of the genre’s ...