Dolly Parton has new music coming out on a soundtrack for an upcoming Netflix movie, Dumplin', and she's also got a cast of collaborators on the project that prove surprising. ONe of the new songs, "Here I Am," features Parton in a duet with pop star Sia.

"Here I Am" is the debut track from Dumplin’. Parton wrote and originally recorded it decades ago, including it on her 1971 Coat of Many Colors album. Sia may seem to be an unlikely pairing to vocalize with Parton, but the two singers meld their vocal talents together here with unexpectedly harmonious results.

Dumplin', which stars Jennifer Aniston, tells the story of a plus-size teen who revolutionizes the pageant industry by entering and causing a revolt in her small Texas town. The soundtrack features newly recorded collaborations of some of Parton's most popular songs (including "Here I Am"), in addition to six new original compositions. Other collaborators on the album include  Miranda Lambert, Mavis Staples, Elle King, Alison Krauss and Rhonda Vincent.

The new songs were co-written by Parton and Grammy nominee Linda Perry, who also co-produced the soundtrack.

The soundtrack will be out on Nov. 30. Netflix has not yet announced a date for the film's premiere.

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