The film Nine to Five, with Dolly Parton in one of the leading roles, opened across America on December 19, 1980, grossing over $3.9 million in its opening weekend. The movie’s theme song, “9 to 5”, became one of Parton’s biggest hits of the decade and went to #1 for two weeks on the Billboard Hot 100.

Haven’t heard ‘9 to 5’ in a minute? Check out the video below: