Simultaneously elevated and bypassed by the artistically prolific year in which it was released, the Young Rascals' Groovin' remains high-water mark of a collective Rolling Stone boldly proclaimed "the blackest white group of all" in 1970. Home to three Top 10 singles and a diverse array of pop music in step with the era's exploratory creativity, the set belongs aside the Beatles' Sgt. Peppers' Lonely Hearts Club Band, Love's Forever Changes, Jefferson Airplane's Surrealistic Pillow, and 1967's other pioneering recordings. Particularly now that it boasts definitive sonics.