Sugababes!
I edited the photos because of sheer size but that picture of Amelle was the best of the lot. You could see the make-up on her face in the original of that one :D I <3 my camera!
They did a medley of Nasty Ghetto (meh), Obsession(jkdfsdjkfs) and Whatever Makes You Happy (triple SQUEE!!!!). Walk This Way was better without Girls Aloud :-X but I'm not keen on the song anyway.
Most importantly, HEIDI WAVED AT ME SLKFJSLDKFJSDFKLSF!!!!!!!!
And I'm done.