Who performs ANGRY DANCE on the BILLY ELLIOT THE MUSICAL soundtrack?

I know that Liam sings all the other songs on the cast album, but it sounds a lot like George on Angry Dance (the vocals seem too low to be Liam). So does anybody know for sure if it's George [or even James] tapping/doing the vocals. It's been bugging me for a while, so any answers/opinions is greatly appreciated!Who performs ANGRY DANCE on the BILLY ELLIOT THE MUSICAL soundtrack?
I have always understood that the person you hear tapping and screaming during Angry Dance on the CD is George Maguire. George sort of became a legend for his Angry Dance, as Liam did for his Electricity.Who performs ANGRY DANCE on the BILLY ELLIOT THE MUSICAL soundtrack?
From what I see on the cd soundtrack page, it says Original Cast Of Billy Elliot for this song, and all the songs that are on the album. So I am not all the way sure, which character(s) or the actors that are heard on the cd that performs the song that you are looking for. Sorry but this is all the help that I can be, I don't own the soundtrack, no have I listened to it. But if you have it in your collection, take a look at it, I would think that it will just tell you the same thing.