Williams will replace another pop superstar — Toni Braxton — beginning Nov. 18. Braxton, who joined the Disney musical June 30, will play her final performance at the Palace Theatre Nov. 16. Aida also stars Will Chase as Radames and Mandy Gonzalez as Amneris.

In a statement Williams said, "I think it's every performer's dream to one day be on a Broadway stage. To play Aida is a dream come true. I'm very excited for this opportunity. Aida is a woman with such strength, and there are so many things about her that I relate to. I love this character and can't wait to truly find her within myself." Disney producer Thomas Schumacher added, "We are thrilled to welcome Michelle Williams not only to Aida, but also to Broadway. Michelle's talent makes her a perfect choice to play Aida."

Michelle Williams joined the hit R&B group Destiny's Child in 2000. Her first solo album, "Heart to Yours," is available from Music World Music/Columbia Records.

Aida — at the Palace Theatre — features a score by Elton John and Tim Rice; a book by Linda Woolverton, Robert Falls and David Henry Hwang; sets and costumes by Bob Crowley; lighting by Natasha Katz; choreography by Wayne Cilento; and direction by Robert Falls. The Palace Theatre is located at Broadway and 47th Street, and tickets are available by calling the Disney hotline, (212) 307-4747.