'American Horror Story: Freak Show' Adds Patti LaBelle And We're All Over The Rainbow

FILE - This June 26, 2011 file photo shows singer Patti LaBelle poses backstage at the BET Awards in Los Angeles. Patti Labelle is a known diva and Queen Latifah does not consider herself one, but both will be among those honored as part of the Black Girls Rock! awards show on BET. Other honorees include tennis champion Venus Williams, screenwriter-producer Mara Brock Akil, ballet dancer Misty Copeland, community organizer Ameena Matthews and children's rights advocate Marian Wright Edelman. Actresses Tracee Ellis Ross and Regina King return as hosts of the ceremony, which will air Nov. 3. It will be taped at the New Jersey Performing Arts Center in Newark, N.J. (AP Photo/Chris Pizzello, File)

Producers have already called "American Horror Story: Freak Show" the series' "best season" yet, and now it's getting even better.

Music legend Patti LaBelle has reportedly signed on for a four-episode arc on the show, according to TVLine. LaBelle will play the mother of Gabourey Sidibe's character and is set to uncover the mystery of Twisty the clown killer.

The newest season of "AHS" will focus on 1950s America and, in addition to LaBelle, will feature Jessica Lange, Sarah Paulson, Kathy Bates, Evan Peters, Angela Bassett and Frances Conroy. Michael Chiklis and Wes Bentley are also set to make appearances, reports TV Guide.

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