The songstress was spotted in New York on Tuesday night (12 November) and was thought to be on her way to an appearance on Late Night With Jimmy Fallon, accompanied by her husband Nick Cannon.
Keeping warm in the chilly NYC weather, Mariah covered up in her coat, which she teamed with a pair of sparkly silver Louboutins and some designer sunglasses - despite the fact that it was dark outside.
Well, she is a diva!
Underneath her coat, 43-year-old Mariah wore a sexy little black dress, which featured a low-cut front.
She completed her super stunning look by styling her golden tresses into curls and accessorised with a pair of black leather gloves.
Her husband Nick, 33, also donned a smart coat for their outing, as he was pictured in a long black option with a furry collar.
He layered his coat over a navy blue suit, which was accented with a lilac coloured shirt and a patterned tie, and he accessorised with a black trilby hat.
However, as funky as he looks, we're not sure about those sparkly shoes! Leave the glitter to Mariah, Nick.
The couple stepped out for the evening for business, leaving their twins Monroe and Moroccan tucked up at home.
The adorable tiny tots were born in 2011, on Mariah and Nick's third wedding anniversary.
What do you think of Mariah's outfit? Let us know below, as the best comment each week wins £50!