Though booked for only one set, Good Earth were asked to perform another after the bands had finished, playing a selection of American folk/blues/skiffle/jug band music from Lead Belly, Woody Guthrie and others, and some of Dorset's songs. Also on the bill was Miller Anderson, making his debut as a singer and guitarist, and Mick Farren and the Social Deviants. Bassist Dave Hutchins left to join Bobby Parker's band and the drummer was dismissed so Dorset and Earl decided to fulfil the one remaining gig, an Oxford University Christmas Ball in December 1968, as a three-piece with Joe Rush, one of Dorset's colleagues, on double bass. Ray Dorset and Colin Earl had previously been members of The Good Earth.
Ray Dorset had to ask his boss for time off to do the UK TV Show Top of the Pops. 13 and the following week went straight to No. The band's first single, "In the Summertime", the first maxi-single in the world, released on 22 May, entered the UK charts at No. Their 23 May show was well received and the organisers asked them to perform again on the following day. Mungo Jerry came to prominence in 1970 after their performances at the Hollywood Festival at Newcastle-under-Lyme, Staffordshire, on 23–24 May, which was their first gig under this name, alongside Black Sabbath, Traffic, Ginger Baker's Air Force, the Grateful Dead (their first performance in the UK) and José Feliciano. ( July 2013) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This section needs additional citations for verification.