How did Mary J. Blige get that scar on her face.

Question

http://www.nme.com/images/84_MaryJBlige_L231106.jpg

under her right eye (very visible)

Answer 1

MJB does not discuss the scar with anyone.

“If I don't accept the scar on my face, the lips that God gave me, the big giant feet, the long legs, whatever it is that I'm deformed with, I got to love it so everybody else can love it. And I started loving it,” she says.

...from a CBS interview

Answer 2

From a guy's zipper.