The #1 R&B song on April 21, 1969

It's Your Thing By The Isley Brothers

Other #1 songs on April 21, 1969

#1 Hit Song

Aquarius/Let the Sunshine In (The Flesh Failures)
The 5th Dimension

UK #1 Song

Get Back
The Beatles with Billy Preston

#1 Country Song

Galveston
Glen Campbell

Notable April 21 birthdays in the 1960s

Fiona Kelleghan

Born April 21, 1965
Ken Caminiti

Born April 21, 1963