She is seriously baked in this clip. I've seen two live clips and in both she seems to be quite high, I love the way she can't stop laughing at certain points. Not the best song they've done, and the first 5 minutes are the crown cheering (whilst i imagine they are backstage smoking a reefer, having a piss as well)

[YOUTUBE]http://www.youtube.com/watch?v=i1jSdNInb74[/YOUTUBE]