MIA.....WTF?

Right, This is clearly some form of political look at me attention thing from MIA. But, you have to admit, it takes balls.

I don't know what I want to say about it. I'm at a loss for words really. I can however tell you that this was MIA's outfit to the Scream awards. Honouring the best in Sci Fi, Horror, Thriller....you get the picture.

can someone tell me ;

a) what was this outfit about?

b) what was Blake Lively doing there? (opening of an envelope?)