On this day in 1989: Simply Red scored their second U.S. #1 single with ‘If You Don’t Know Me By Now’, a 1973 U.K. hit for Harold Melvin and the Blue Notes.

Here’s a look at the entire Top 10 on the U.S. singles chart from this day back in 1989:

1 3 IF YOU DON’T KNOW ME BY NOW –•– Simply Red – 11 (1)
2 4 EXPRESS YOURSELF –•– Madonna – 7 (2)
3 1 GOOD THING –•– Fine Young Cannibals – 11 (1)
4 5 TOY SOLDIERS –•– Martika – 9 (4)
5 2 BABY DON’T FORGET MY NUMBER –•– Milli Vanilli – 12 (1)
6 12 BATDANCE –•– Prince – 5 (6)
7 7 MISS YOU LIKE CRAZY –•– Natalie Cole – 14 (7)
8 10 WHAT YOU DON’T KNOW –•– Expose – 9 (8)
9 11 THE DOCTOR –•– The Doobie Brothers – 9 (9)
10 15 SO ALIVE –•– Love And Rockets – 9 (10)