I was disappointed watching it on TV tonight - BBC 3 only showed songs from the Radio 1 playlist, so missed out loads of good stuff. Oh well, I guess they can only show a tiny fraction of what went on.
I saw the video footage, and it looked like she lashed out randomly at the nearest person when someone chucked a hat at her. She was going for it but the security guard just stood there. Very odd. She certainly has some issues with drugs & violence.