Annie Barrett
April 03, 2009 AT 02:15 PM EDT

Seven-time Grammy winner Gladys Knight, gospel singer Marvin Winans, and CSI: Miami star Adam Rodriguez have joined the cast of Tyler Perry’s upcoming I Can Do Bad All by Myself, according to the Hollywood Reporter. Knight, Winans, and Mary J. Blige will all sing in the film, with Blige performing an original song by Ne-Yo. I Can Do Bad All by Myself also stars Taraji P. Henson, Brian White, Hope Olaide Wilson, Kwesi Nil-Lante Boakye, Frederick Siglar, and Perry himself (as Madea, of course). The film will open September 11.

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