Nicki Minaj on Good Morning America
Air date: August 5, 2011
The funny thing about this one is that it is one of the most blatant slips on this list, but people were reluctant to believe their own eyes. It's Nicki Minaj, after all, queen of the silly wardrobe choice. Was it a nipple, or just some strange, stray bit of costume? It was most surely a nip.