Mary-Kate Olsen MKOLSEN040508_02.jpg Do not adjust your monitors - that really is one of the Olsen Twins behind that mask! The twins showed up to Estee Stanley's big wedding gala sporting these, er, interesting accessories. Think they'll catch on?

Of course, if masks do take off, it'll be because the Olsens picked such a star-studded event in which to debut them - check out our gallery of Estee's celebrity-studded wedding! (Seriously, the guest list was just packed - heck, it put Jay-Z and Beyonce's to shame!)

Click here for the gallery!