The #1 song on April 20, 1979

Knock on Wood By Amii Stewart

Other #1 songs on April 20, 1979

UK #1 Song

Bright Eyes
Art Garfunkel

#1 R&B Song

Disco Nights (Rock-Freak)
GQ

#1 Country Song

All I Ever Need Is You
Kenny Rogers and Dottie West

#1 Dance Track

Dancer/ Dance to Dance
Gino Soccio

Notable April 20 birthdays in the 1970s

James Fisher
TV Actor
Born April 20, 1972
Clay Cook
Songwriter
Born April 20, 1978
Duncan Trussell
Comedian
Born April 20, 1974
Elie Madi
Fashion Designer
Born April 20, 1973
Benjamin Butler
Painter
Born April 20, 1975
Shay Given
Soccer Player
Born April 20, 1976
Josh Wink
DJ
Born April 20, 1970