Question: who wrote the song the age of aquarius
Answer: `` Medley : Aquarius / Let the Sunshine In ( The Flesh Failures ) '' ( commonly called `` Aquarius / Let the Sunshine In '' , `` The Age of Aquarius '' or `` Let the Sunshine In '' ) is a medley of two songs written for the 1967 musical Hair by James Rado and Gerome Ragni ( lyrics ) , and Galt MacDermot ( music ) , released as a single by American R&B group The 5th Dimension .