Simon Cowell’s upcoming Fox singing competition “X Factor,” closing in on its Sept. 21 premiere, is bringing in a high-powered celebrity as a mentor, Deadline.com reports.

Mariah Carey is reportedly in final negotiations for the job. And feelers are out for others. An insider tells the publication that the show has reachd out to “the Beyonces, the Rihannas, all of them.”

Carey has been talked about as a contender for a spot on the show from the start. Her pregnancy may have prevented her from becoming a judge on the show, the story says.