Question: To whom was the self-designated group advises to in which Cheryl D. Mills was considered a member?
Sentence (from "Cheryl: My Story"): In addition to dealing with her childhood and her rise to fame as a member of the girl group Girls Aloud, Cole also discusses her volatile marriage with the footballer Ashley Cole, her life-threatening battle with malaria and her relationship with "The X Factor" boss Simon Cowell.
Relevant evidence: No