On this day in 1981: Sheena Easton was enjoying the #1 spot on the U.S. singles chart with ‘Morning Train (Nine to Five).’ The song would stay on top of the chart for two weeks, until ‘Bette Davis Eyes’ by Kim Carnes would take over the top spot in mid May.

Early in 1981, EMI Records decided to launch Easton in the US and released “9 to 5” as her debut single. The title of the song was changed to “Morning Train (Nine to Five)” to avoid confusion with the Dolly Parton song of the same name, which charted nearly simultaneously with Easton’s record. Easton’s song went to #1 on both the U.S. pop and adult contemporary charts; it remained at the top for two weeks on Billboard’s pop chart. On Billboard‘s 1981 year-end charts, it came in as the twelfth-biggest pop and thirteenth-biggest AC hit of the year 1981. It also topped the RPM magazine pop and AC charts in Canada.