Melissa Fumero and Stephanie Beatriz are headed to "One Day at a Time."

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The "Brooklyn Nine-Nine" stars announced in Instagram posts Tuesday that they will guest star on "One Day at a Time" in Season 3.

Fumero shared a clip of herself and Beatriz dramatically emerging from behind a curtain.

Beatriz shared the same clip on her own account.

"Guess who's coming to hang with the Alvarez family!?!! @iamstephbeatz and I are guest starring on @odaatnetflix Season 3!!!! #OneDayAtATime," Fumero captioned her post.

"DREAMS COME TRUE," Beatriz wrote. "@melissafumero and I are gonna be on @odatnetflix season 3!"

"One Day at a Time" confirmed the news on Twitter, writing, "Our familia keeps growing."

Entertainment Weekly reported Fumero and Beatriz will appear in the same episode as Gloria Estefan, who sings the show's opening theme.

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Fumero and Beatriz will both play cousins of Penelope (Justina Machado).

"One Day at a Time" originally had a nine-season run on CBS from 1975 to 1984.

The Netflix reboot stars Machado, Dwayne Schneider, Isabella Gomez, Marcel Ruiz and Rita Moreno, and debuted in January 2017.

Fumero and Beatriz play Amy Santiago and Rosa Diaz on "Brooklyn Nine-Nine," which was picked up by NBC in May after being canceled at Fox after five seasons.

Terry Crews, who portrays Terry Jeffords, called the move "dramatic" in a new interview.

Photo credit: Stephanie Beatriz/Instagram