2012 two CD collection from the legendary Latin musician. Contains 26 tracks taken from his best-selling years on the Fania label. After recording a number of albums for the United Artists label, Barretto joined the Fania record label in 1967, and his first recording for the new label was the 1968 album Acid, an experiment joining rhythm and blues with Latin music. The album contained the song "A Deeper Shade of Soul", which was sampled for the 1991 Billboard Hot 100 #21 hit "Deeper Shade of Soul" by Dutch band Urban Dance Squad.