Patti LaBelle

Patti LaBelle greets guests backstage after her debut in 'After Midnight' at the Brooks Atkinson Theatre in New York City. (Walter McBride / Getty Images / June 10, 2014)

Patti LaBelle is ready to stir it up on "American Horror Story: Freak Show."             

The singer has been cast in the upcoming fourth iteration of Ryan Murphy and Brad Falchuk's horror anthology series on FX.             

LaBelle will appear in four episodes of the upcoming season, playing the mother of Gabourey Sidibe‘s character.

The upcoming season will takes place in the 1950s and center around a freak show in Florida. In addition to returning cast members such as Sidibe, Jessica Lange and Sarah Paulson, the cast has made a number of additions for the upcoming season, including “The Shield” alum Michael Chiklis and “All My Children” vet Finn Wittrock.             

“How I Met Your Mother” star Neil Patrick Harris has also expressed his interest in appearing on the show, with series co-creator Ryan Murphy replying via Twitter, “of course you can be on Freak Show! I have a role I think you'd love."

Though best known as a singer, LaBelle has considerable acting credits, including “A Different World,” “Out All Night” and “Semi-Pro.”

TVLine first reported LaBelle's casting.

TheWrap