Just because you're a Mariah Carey fan does not mean that you have to like her outfits. This is a good example: the irony of performing for the New York fashion crowd in this gown wasn't obscured by the couple's happy grins post-performance. Nick Cannon was no less subtle in a dapper all-white suit to offset all the spangle. I can't wait to see what Mariah wears under the tents at New York Fashion Week now!

Mariah's "Fashion Rocks" performance brought the two lovebirds out in New York, where they headed to dinner at Nobu after Mariah's Radio City Music Hall performance.