“I Want You Back” hits number one on the US Pop singles chart

“I Want You Back” reaches the summit of the Billboard Hot 100, holding the position for one week, and also tops the Black singles chart for four weeks. The single goes on to sell more than two million copies in the United States.

On the same day in Britain, “I Want You Back” / “Who’s Loving You” enters the UK Top 50, peaking at number two and remaining on the chart for thirteen weeks — selling over 250,000 copies.