Monkey's Bum

In the Spring of 1973, the band headed back to the studios to record their fourth album titled "Monkey's Bum". Muff wanted the band to take a different approach on this record and promoted the idea of emphasizing Mike's songs, which were more commercial and accessible than the material on their previous albums. Their previous albums had always focused on tracks written by Ollie or jointly by Ollie and Mike. The idea of shifting the focus to Mike's material created conflict between Ollie and the rest of the band. There was also frustration due to the lack of success after years of trying hard.

During the sessions, Ollie refused to put a lot of creative effort into some of the songs, particularly those written by Mike. Ollie decided to quit the band and left an incomplete album in his wake. Rather than throw in the towel, Patto decided to replace Ollie's less inspired bits with sax solos from Mel Collins and completed the album.