The #1 song in the UK on July 21, 1987

Who's That Girl By Madonna

Other #1 songs on July 21, 1987

#1 Hit Song

Alone
Heart

#1 R&B Song

Fake
Alexander O'Neal

#1 Country Song

The Weekend
Steve Wariner

#1 Dance Track

I Wanna Dance with Somebody (Who Loves Me)
Whitney Houston

Notable July 21 birthdays in the 1980s

Romeo Santos
World Music Singer
Born July 21, 1981
Heinrich Brussow
Rugby Player
Born July 21, 1986
Brian Perk
Soccer Player
Born July 21, 1989
Wei-yin Chen
Baseball Player
Born July 21, 1985
Stephen McCarthy
Soccer Player
Born July 21, 1988
Robert Roldan
Dancer
Born July 21, 1990
Harper Smith
Photographer
Born July 21, 1982