The #1 song in the UK on December 20, 1979

Another Brick in the Wall (Part II) By Pink Floyd

Other #1 songs on December 20, 1979

#1 Hit Song

Escape (The Piña Colada Song)
Rupert Holmes

#1 R&B Song

Do You Love What You Feel
Rufus and Chaka

#1 Country Song

Happy Birthday Darlin'
Conway Twitty

#1 Dance Track

Deputy of Love
Don Armando's Second Avenue Rhumba Band

Notable December 20 birthdays in the 1970s

Andrei Markov

Born December 20, 1978
David Nedohin

Born December 20, 1973
Nicole de Boer

Born December 20, 1970