Circus is the sixth studio album of Argent, released in March 1975 by Epic (PE 33422), and distributed by CBS. It was the last album as part of their contract with CBS Records and the first after the departure of founding member/lead vocalist/guitarist Russ Ballard. New lead vocalist John Verity was added at the recommendation of Ballard (Verity's band had supported Argent during their previous tour and had impressed Ballard).