We spotted 42-year-old singer/actress Mariah Carey looking quite natural in New Orleans, on the set of ‘The Butler’. No word on which role, ‘Mimi’ is playing, but she will be alongside other A-listers in the film like Oprah Winfrey, Alex Pettyfer, Minka Kelly, Lenny Kravitz and John Cusack. Peep pix of an all natural Mariah on set.