2026 release. Legendary British artist Mungo Jerry, led by founding member Ray Dorset, returns with a brand-new album titled "Undefinable". Best known for the global smash hit "In The Summertime", which first stormed the charts in 1970, Ray Dorset continues to defy expectations with a collection of songs that reflect a lifetime of musical exploration, storytelling, and authenticity. The title "Undefinable" speaks directly to Dorset's long-standing resistance to being placed in a single musical category.