These four celebrities all have a third nipple. Third (superfluous) nipples can run the gamut from tiny, dark patches of hair that are mistaken for moles to small nipples capable of bearing milk. In the seventeenth century, women with superfluous nipples were considered and exposed as witches. They were accused of suckling the Devil.

They are diagnosed at about 2% in females and slightly less in males. Often mistaken as moles and never diagnosed.

Mark Wahlberg had his airbrushed out of his Calvin Klein underwear ads and Carrie Underwood admitted on 'The Voice", that she had hers surgically removed. The others have addressed and even joked about their third nipple.

Atelophobia is the fear of being imperfect, possibly something someone with a third nipple may experience.

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