Megaton was a studio project founded in 1971 by two Englishmen Les Humphries and Jimmy Bilsbury. As the leader of the popular Les Humphries Singers – who, however, were still unknown at the time – Humphries experimented with various genres, always on the lookout for a hit. The result was a heavy rock album, very much in the style of the progressive underground scene of those years, recorded with German and British musicians. Alongside lead singer Bilsbury and Humphries (p, org, sax, voc), the line-up included Peter Hesslein, former lead guitarist with Asterix (1970), studio musician and bassist Joachim „Benny“ Bendorff and drummer Barry Reeves, a former member of the Blossom Toes (If Only For A Moment, 1969).

This top-class quintet played a gripping brand of hard rock, influenced by blues and psychedelic rock, based on radio-friendly and commercial melodies composed by Humphries and Bilsbury. Alongside numerous guitar solos in the classic style of the early 1970s and energetic vocals, the band also featured keyboards, flute, saxophone and various percussion instruments. Their only self-titled album was first released in 1971 in Germany on Decca, followed by releases in the UK and several Latin American countries. However, commercial success failed to materialise and so the project was shelved. Even the brilliant psychedelic-style cover collage, designed by the photography and design agency Three Lions and featuring Liz Mitchell – then still a very young Boney M. singer – couldn't help. Not only the original English edition on Deram soon became a sought-after classic, but the German first pressing, especially the promotional edition, is also extremely rare and in demand, but not nearly as expensive.