Though he developed a reputation as an inward-looking, spiritually inclined folkie, Cat Stevens' repertoire extends far beyond metaphysical—and acoustic—fare. His earliest hits, like the breezy jaunt “I Love My Dog,” touch on everyday sweetness; as time has passed, he's expanded his sound to incorporate kaleidoscopic psychedelia, like the dreamy wig-out “Sun/C79” and the baroque funk of “Foreigner Suite.”