In a sneak peek that aired at the end of Wednesday night's episode of the HGTV series, Christina she chose ex-husband, Ant Anstead, to be one the guest judges.

Have you picked the judge yet?” Young asks Christina, to which she responds with a giggle, “My second ex-husband… Anthony Anstead.” Both Young, 37, and El Moussa, 43, looked shocked at the reveal.

On Weds. night’s episode, viewers got a preview of Anstead’s tough love towards Christina as he takes his judging responsibilities on the show very seriously

Christina Haack poked fun at Josh Hall's swift exit after they were previously a team on HGTV's 'The Flip Off'

In 2024, Haack made headlines for agreeing to team up with her third husband, Josh Hall, to go against the El Moussas in a home makeover challenge. But Haack and Hall split during the early days of filming amid tensions evidenced in the series' Jan. 29 premiere.

Christina Haack and Tarek El Moussa split close to 10 years ago—but the mother of three still knows how to get under her ex-husband's skin. She displayed that skill in the latest episode of their HGTV show " The Flip Off " when she teased a "new partner" who she knew would spark some upset.