After a few albums of sexy, sunny funk/pop, the twisted mind of Sly Stone turned dark, moody, reflective, and angry. Despite all this, Riot is as funky as Sly's previous records. Stone spoke not only to the turmoil in 1971's America, but also to the chaos of his increasingly druggy personal life. This is an album of dangerous beauty, where every song is haunting and restrained.
- Guitar Gear