The band's fourth American release, it was issued in August 1966 on MGM Records.

It has a track listing somewhat similar to the British album Animalisms.

It was during this period that drummer John Steel left the group and was replaced by Barry Jenkins, previously of The Nashville Teens (of "Tobacco Road" fame).

Both drummers appear on the cover, Jenkins on the front (upper right in brown shirt) and Steel on the back.

In addition, it was also during this period that Mickie Most stepped down as the group's producer and was replaced by Tom Wilson.