@KarenPang: XD
My first thought was: "Mhm, they could perform 'Monster' in these outfits"!, but I would have never thought that they actually did!
The songs they performed are...okay...I'm happy about "Monster", but since a few weeks I can't listen to "Believe" anymore (I think, I listened to it too much!) and I was never too fond of "Happiness".
But Thank you! for sharing the video!