Netflix confirms Dolly Parton will appear on Grace and Frankie's final season, reuniting with 9 to 5 co-stars Jane Fonda and Lily Tomlin

TVLine

Details of the country music icon's guest appearance are being kept under wraps. Last July, Parton told Andy Cohen on Watch What Happens Live that she planned to visit the Netflix comedy. “This is their last season, so we’re figuring out how they want to use me," she said. "But I am absolutely going to be on it this year.”