When the time comes for cosplay, it is time to let loose our inner exhibitionist, inner vamp, inner baby doll or whatever persona we keep under wraps for most of the time. It may be school dressing up time and all the fun we can have from dressing our little angels in a cute Disney costume or pretty little kawaii Japanese kitty. For grown-ups, Halloween is always a great reason to get creative with a costume. Check out what some of our favorite celebs can do with a costume: Mariah Carey and her children as a fabulous witch with Batman and Batgirl and Gigi Hadid as sexy Sandy from Grease. We just love dressing up!