Help Help Help....

This is probably a very simple question for most of you guys,but its driving me round the bloody twist. I need the name of a song. It's a scary ass classical piece, and very well known. Sung in latin i think. If u go to the link below and play the (rather funny) gay test thing,the music that plays during the test is the song that i'm looking for. Can anybody help, or am i doomed forever??

Cheers.......
Stevie

Please click da link below

www.snackfoam.pwp.blueyonder.co.uk/gaytest1.html