There was music playing in the background when Louis suggested to the rest of the panel that the rejected boys/girls should form groups and continued right up until the break. It came just after the girls had been rejected.
There were no words. Sounded like a classical piece, piano started off on it's own then built up. AAAARRRGGGG! Got it on video tape but have no way of getting it on to the computer.
Goodsoulette
It was not the music that you linked to, though it sounded similar...