Thursday, Mariah Carey posted a picture of her wearing high heels at the gym on her Instagram account. In Mariah Carey fashion, her entire workout ensemble was glamorous. In all she wore a leotard, fishnet stockings, stilettos, and of course diamonds. Carey posted three photos in all and included her personal trainer Gunnar Peterson on her Instagram fame. If Carey illustrated anything from her posts, it?s that she proved she can be a dive anywhere in life.