Today marks the third annual MCA Day in NYC in honor of Beastie Boy Adam Yauch, who succumbed to a three-year battle with cancer on May 4th, 2012 at the age of 47. Festivities get underway today at 11 a.m. at Littlefield Performance and Art Space in Brooklyn, but a group of men dressed as Tibetan monks got in on the action by breakdancing in Union Square in his honor. Check it out below.

You can find out more info about today's free festivities here, and check out some classic Beastie Boys clips here.