Pussycat Dolls Group Question?!

I am confused!. Why is there only 5 members of the pussycat dolls group and not 6!. i mean they used to have Nicole, Kimberly, Ashely, Melody, Jessica, and Carmen, but now I saw that Carmen is not with them in any of the songs!. Where is she!?Www@Enter-QA@Com

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