Singer India Arie will have to wait a little longer to make her Broadway debut. A revival of Ntozake Shange’s “For Colored Girls Who Have Considered Suicide When the Rainbow Is Enuf,” which was to have starred the Grammy-winning singer, has been postponed. The delay occurred because the loss of one of the production’s backers, producers Whoopi Goldberg and DreamTeam Entertainment Group announced Wednesday. No word on when the show would be rescheduled. The play, directed by Shirley Jo Finney and choreographed by Hinton Battle, was to have opened Sept. 8 at Circle in the Square. “For Colored Girls…,” a prose-poem portrait of black women in America, originally featured Shange and Trazana Beverley, who won a Tony for her performance. It was an off-Broadway hit for the Public Theater in 1976 before transferring to Broadway for a run of more than 700 performances.