"Medley: Aquarius/Let the Sunshine In" is a medley of two songs written for the 1967 musical Hair by James Rado and Gerome Ragni, and Galt MacDermot, released as a single by American R&B group the 5th Dimension. Wikipedia
Featured in film: The 40-Year-Old Virgin
Lyricists: James Rado and Gerome Ragni
B-side: "Don'tcha Hear Me Callin' to Ya"
Composer(s): Galt MacDermot
Genre: Psychedelic soul; sunshine pop; bubblegum pop;
Top recordings
Let The Sunshine In (Reprise) (Remastered 2000)
The 5th Dimension · 1969
Let The Sunshine In (Reprise) (Remastered 2000)
The 5th Dimension · 1969
Let The Sunshine In (Reprise) (Remastered 2000)
The 5th Dimension · 1969
Let the Sunshine In (Audience During Sunday Rainstorm)
Galt MacDermot · 1971
Let the Sunshine In (Audience During Sunday Rainstorm)
Galt MacDermot · 1971