Dolly Parton Joining Pentatonix for NBC Holiday Special

Dolly Parton and Pentatonix.
Jeremy Westby

Dolly Parton and Pentatonix.

Dolly Parton will join NBC's upcoming A Pentatonix Christmas Special airing next week. 

It's a fitting addition to the show -- which will also feature Reba McEntire and Kelly Clarkson performing with Pentatonix -- as Parton and the chart-topping a cappella quartet just this week received a Grammy nomination for Best Country Duo/Group for their a cappella arrangement of "Jolene." 

Parton's involvement was announced Friday (Dec. 9) with an updated preview clip via Deadline

Pentatonix released A Pentatonix Christmas, their fourth studio album and second holiday album, on Oct. 21, hitting No. 2 on the Billboard 200 albums chart. The hour-long special will air Wednesday, Dec. 14., at 8 p.m. on NBC. It will re-air Saturday, Dec. 17 at 8 p.m. 

Watch the preview here: