I just watched this interview about performance art with Marina Abramovic, i couldnt make it load using youtube, so heres the link http://www.youtube.com/watch?v=v_CMzjLGGaM
I found it very interesting. She talks about how she did not realize herself to be a performance artist to start with, she was a painter, then realised she was using her body in many ways, making her a performance artist. She then goes on to discus some of the things she has done and the messages of them, such as eating an Onion and discussing her dislikes, and making relevance of the layers.