"Ryan McGinley: "We had to basically rig a truss for this swing; it was a major production to make sure it was safe. I tried it out. M.I.A. might have gotten there and said, 'I'm not doing this; this is too crazy.' But she got on and just started swinging like it was something normal. "I remember her saying, 'If I'm going to go out, this is an awesome way to go.'""