Bandmember Kimberly Wyatt recently insisted the Pussycat Dolls brand would always continue, despite differences of opinion between the girls.
But sources tell New York Post gossip column Page Six that the stars are preparing to announce an official split, because they have all turned their backs on Scherzinger.
An insider tells the publication, "It is war. They have broken up for good. None of the other girls are speaking to Nicole, who they believe took the limelight, then went off to do her own thing."