Ronnie Dyson (Ronald Dyson, June 5, 1950 — November 10, 1990) was an American singer and actor. Born in Washington, D.C., Dyson grew up in Brooklyn, New York where he sang in church choirs. At just 18 years of age, he won a lead part 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