2009: A Tiger
Mariah Carey and Nick Cannon’s party at M2 Ultra Lounge, New York
The earliest Rihanna Halloween costume on record, and the most standard one on this list. She went as a sexy tiger to a Halloween party hosted by Mariah Carey and Nick Cannon in Chelsea, and posed for photos with Coco and Ice-T.
Nothing about it says Rihanna. That is the useful part if you want to copy it: tiger print, ears and a tail, and you are done.