The #1 song on August 21, 1987

Who's That Girl By Madonna

Other #1 songs on August 21, 1987

UK #1 Song

I Just Can't Stop Loving You
Michael Jackson and Siedah Garrett

#1 R&B Song

Casanova
LeVert

#1 Country Song

Why Does It Have to Be (Wrong or Right)
Restless Heart

#1 Dance Track

Tina Cherry
Georgio

Notable August 21 birthdays in the 1980s

Hayden Panettiere

Born August 21, 1989
Kacey Musgraves

Born August 21, 1988
Brooks Wheelan

Born August 21, 1986
Melvin Upton

Born August 21, 1984
Brody Jenner

Born August 21, 1983
Omar Sachedina

Born August 21, 1982
Cameron Winklevoss

Born August 21, 1981
Bryan Allen

Born August 21, 1980