(Saturday, January 19, 1980) — “Rock with You” by Michael Jackson peaked at #1 on today’s Billboard Hot 100 singles chart for four consecutive weeks (Jan. 19/26, Feb. 2/9, 1980).

It was Jackson’s third of 13 number one hits on the chart (1972-1995) after reaching the top of the chart four times with the Jackson 5 (all in 1970).