Check out the link

http://www.joshhosler.biz/NumberOneInHistory/SelectMonth.htm

This song was #1 on the charts on the date of my birth.

1981 ... "Endless Love" by Diana Ross & Lionel Richie

But then I got to thinking what was the #1 song in India at the time because that's where I was? Did they have tape players in 1981? I'm sure my parents have it if so.