Dolly Parton and Kelly Clarkson revamp '9 To 5' hit song as duet for documentary

Dolly Parton (left) and Kelly Clarkson recorded their parts in November and December, and filmed themselves in the studio as well for a forthcoming music video. Photos: AP/NBC

Dolly Parton and Kelly Clarkson have joined forces with producer Shane McAnally to record a very different version of the Parton classic 9 To 5 as a duet for an upcoming documentary, Still Working 9 To 5, just announced for a premiere at the South by Southwest Film Festival in March.

The documentary's premiere at SXSW was announced earlier, but for the filmmakers, the new recording by Parton and Clarkson counts as a big reveal, too.