I don't think Mutya Coolio.
And the former Sugababe said she would fight for her full appearance fee as show bosses did nothing to stop the 45-year-old rapper.
Mutya, 23, said: "Producers should have stepped in.
"Coolio is just a dirty old man who is old enough to be my father. He's a sex pest who would perv on me all the time. It just made my skin crawl."
Channel 4 confirmed they have had complaints about Coolio. Ofcom are investigating and will announce their findings on Wednesday.