Effective period / Period of releases: 1968 - 1970

Members: Tony Rivers, Tony Ferguson, Kenny Rowe, Joe Williams (13), Ray Brown (10), Tom Marshall (6), Tony Harding (3), Brian Hudson (5), Bill Castle (2)

Harmony Grass was a British sunshine pop group briefly active in the late 1960s.
The group was formed in Essex by previous members of Tony Rivers And The Castaways, including Rivers himself. They signed to RCA Records about a year after they formed, and their single "Move in a Little Closer" hit No. 24 on the UK Singles Chart in January 1969. They released one album, This Is Us, in 1969, on the RCA label, and performed in the UK, including at London's Marquee Club, but had broken up by 1970.