I got to squeeze through a naked people sandwich to get from one gallery to another in the Marina Abramović MoMA retrospective. As the NYT put it, this was "a re-creation of a 1977 work in which Ms. Abramović and her partner then, the German artist Frank Uwe Laysiepen, known as Ulay, faced each other naked within the frame of a gallery doorway, forcing people who wanted to enter to squeeze between them." Here's a photo from that original piece:
Abramović's art takes on all kinds of issues, including the politics of former Yugoslavia, Serbian Orthodox Christianity, and as you can see, the body.
Here is a piece in the WSJ with more about the show (that ended May 31) and its enduring "digital footprint." It includes a video of Abramović and actor James Franco.