(CNN)The producers of Netflix's "Grace and Frankie" are not going to let our dreams shatter: Dolly Parton will be joining her "9 to 5" co-stars in the upcoming final season of the show.The streamer announced the guest spot on Friday, tweeting, "It's finally happening: Dolly Parton will appear in the seventh and final season of Grace and Frankie!!!"No details on her role have been made available.