Billy Corgan opened up about and showed off port-wine birthmarks on his left arm and hand in a vulnerable Instagram post about body positivity. The Smashing Pumpkins frontman shared a photo of his ...

Billy Corgan discussed the port wine birthmarks he's had on his hand since he was a kid in an effort to embrace a message of body ... “I have a really big birthmark on my left hand, ...

The musician went viral last week after sharing a photo displaying the large “port wine” birthmarks on his left arm and hand, which he said he was “teased unmercifully” over as a kid.

Corgan went on to admit, "My whole life I've endeavored to hide my ‘port wine' birthmarks because as you can imagine, I was teased unmercifully about them as a child.