Everything is coming up Rosie on Mom.
Rosie O’Donnell has signed on to guest-star on the CBS sitcom, and PEOPLE has the exclusive details on the character she will be playing.
O’Donnell, 53, will play Jeanine, a woman with whom Bonnie (Allison Janney) had a romantic relationship “back when she was drinking and drugging,” according to the network.
Though she has come to be known for her unscripted work on television (both on The View and her talk show, which ran from 1996 2002), O’Donnell spent the past year working on the ABC Family drama The Fosters.
O’Donnell’s episode of Mom is slated to air in early 2016.
RELATED VIDEO: Mom Star Anna Faris: I Was a Serious Child – with Headgear
Season 3 of Mom premieres Thursday at 9 p.m. ET on CBS.