If you ask me, it looks like Mariah Carey has seen Star Wars one time too many, or maybe that's me, but Mariah's outfit looks like something Obi-Wan Kenobi would wear to the ski slopes, if he was blind.
From her wooley mega-hooded pancho/parka/cloak/coat, down to her shiny silver Back to the Future high heel boots, Mariah is a mashup of some pretty bad "future" fashion. Also, I don't think she's wearing a bra.
I'd ask where she's hiding her Lightsaber, but I really don't want to know.
Photo credit: Flynet