Kool & The Gang’s fourth studio album is a full-on funkfest, finding Robert “Kool” Bell and co. neck-deep in hard-grinding grooves. With its serpentine horn lines and down-and-dirty feel, “Jungle Boogie” is the band at its party-starting best, but the appropriately titled “Funky Stuff” and the hectic, heavy-grooving “This Is You, This Is Me” hit just as hard. The band take a couple of brief breaks from funking it up, too: Dreamy ballad “Heaven at Once” and the breezy, jazzy title track hint at their multifaceted musical makeup.