Watch: Karaoke and butterflies - US cities celebrate Dolly Parton Day

The day is observed on 25 September, or 9/25, as a nod to the late Queen of Country's hit song 9 to 5.

By BBC World · BBC World

The day is observed on 25 September, or 9/25, as a nod to the late Queen of Country's hit song 9 to 5.