The #1 song on April 21, 1978

Night Fever By Bee Gees

Other #1 songs on April 21, 1978

UK #1 Song

Matchstalk Men & Matchstalk Cats & Dogs (Lowry's Song)
Brian and Michael

#1 R&B Song

Too Much, Too Little, Too Late
Johnny Mathis and Deniece Williams

#1 Country Song

Every Time Two Fools Collide
Kenny Rogers and Dottie West

#1 Dance Track

Voyage (all cuts)
Voyage

Notable April 21 birthdays in the 1970s

Michael Turner

Born April 21, 1971
Rob Riggle

Born April 21, 1970