Looks cute, but for the first time I come to the conclusion that she is now aging (not her face but her body, specially her legs). It seems she is letting go. But still looking good for her age.
Her legs would look better if she lost some weight, it is not a matter of age actually, it is cellulite. Mariah's legs were criticized when she came to Brazil in 2009/2010 for Fashion Rocks, and then when she was skinny on American Idol years later her legs were smooth, so it is fat.
But if she feels good this way, who am I to complain?