M.K.O. and Her Man!

This is rare!

Mary-Kate Olsen tries really REALLY hard to keep her “private life” private.

Well, the tiny twin has just thrust her man into the spotlight!

M.K. took her boyfriend of six or so months to the Benjamin Cho fashion show, sponsored by Miami Boutique Hotels, in NYC.

His name is Nate Lowman and he’s an “artist.”

What do you make of the pair????

[Photo via Getty Images.]