Ronnie Dyson (June 5, 1950 – November 10, 1990) was an American soul and R&B singer and actor. He won a lead role in the Broadway production of Hair, debuting in New York in 1968. Dyson became an iconic voice of the 1960s with the lead vocal in the show's anthem of the hippie era, "Aquarius". It is Dyson's voice leading off the song and opening the show with the famous lyric "When the Moon is in the seventh house, and Jupiter aligns with Mars...".[1]
Find out more about the Dyson's UK releases at 45cat (singles), 45worlds (albums), and Discogs (all). "When You Get Right Down To It" was his only hit in the UK[2].