No it wasn't a dance track. It was sung by a woman. It was mid tempo. If you've heard of imogen heap - it was quite similar to her voice but I don't think it is her. I find it hard to believe the bbc don't have a list of music played during the tournament. I can't find any details on their site but I can assure you that there have been many queries regarding this dong - but nobody knows......
I've found the answer on another site. The song is called This Beautiful Day and it's by an Oz band called Blond Fish. You can listen to the song here: