Chicago VI is the fifth studio album by American rock band Chicago and was released on June 25, 1973, by Columbia Records. It was the band's second in a string of five consecutive albums to make it to No. 1 in the US, was certified gold less than a month after its release, and has been certified two-times platinum since. It is the first album to feature percussionist Laudir de Oliveira, who would become a full-fledged member of the band for Chicago VIII. VI is the first studio album to feature the original band members on the cover before the death of leader and co-founder Terry Kath. No. 1 on the Billboard 200 for 3 weeks, from the issue of July 28, 1973. Wiki link