No, this isn’t the latest incarnation of (Thee) Oh Sees. In fact, it’s a previous incarnation of Os Mutantes. Three of those who would go on to form OM - Rita Lee and the Baptista brothers - were members of O’Seis. 1966 single Suicida/Apocalipse was the group's only release, but both tracks fizz with energy and spark. Neatly prefaces the tropicalia/psych-rock explosion that OM would spearhead a few years later.