The #1 song on October 21, 1975

Bad Blood By Neil Sedaka

Other #1 songs on October 21, 1975

UK #1 Song

I Only Have Eyes for You
Art Garfunkel

#1 R&B Song

To Each His Own
Faith Hope and Charity

#1 Country Song

San Antonio Stroll
Tanya Tucker

#1 Dance Track

Love to Love You Baby
Donna Summer

Notable October 21 birthdays in the 1970s

Khalil Greene

Born October 21, 1979
Will Estes

Born October 21, 1978
Jeremy Miller

Born October 21, 1976
Lera Auerbach

Born October 21, 1973
Matthew Friedberger

Born October 21, 1972