The children's music group also reimagined Parton's classic "9 to 5" as an educational song called "Counting 1 to 5 ... into the Wiggles’ world!" "I had so much fun being a part of this project ...

penned by Parton, and featuring the country icon on lead vocals — was released on Thursday (Feb. 20), as well as “Counting 1 to ... the Wiggles’ world! I had so much fun being a part of ...