No, not MILF, you filthy perv! MIRF is the mash-up of New York graffiti artists Mint and Serf, who’ve collaborated with Marc Jacobs on the windows for his Marc by Marc Jacobs store. Mint and Serf have also worked with everyone from Ace Hotel to Patrick (not Robert) Duffy’s new restaurant, BES (Boutique Eating Shop). Plus they’ve appeared in one of Marc’s ads by Juergen Teller. It’s amazing where graffiti can get you these days.