The #1 song on December 21, 1977

How Deep Is Your Love By Bee Gees

Other #1 songs on December 21, 1977

UK #1 Song

Mull of Kintyre / Girls' School
Wings

#1 R&B Song

Serpentine Fire
Earth, Wind & Fire

#1 Country Song

Here You Come Again
Dolly Parton

#1 Dance Track

Once Upon a Time... (all cuts)
Donna Summer

Notable December 21 birthdays in the 1970s

Murad Dadashov
TV Show Host
Born December 21, 1978
Preeti Shenoy
Novelist
Born December 21, 1971
Sulaiman Merchant
Composer
Born December 21, 1970
Carolyn Mara
Photographer
Born December 21, 1979
Pei Ketron
Photographer
Born December 21, 1980
Karrie Webb
Golfer
Born December 21, 1974
John Pardee
Screenwriter
Born December 21, 1976
Claudia Poll
Swimmer
Born December 21, 1972