Trying to find out the name of a french dance song from a few years back...
It's all in french and begins with a female vocal saying "Mesdames et Messieurs" and some other french before the dance part begins.
Right before the main dance bit she shouts a french line out, I'm not up on french so I'll spell out what she says phonecially - "au commin fwou"
The song's got a very trance-y feel to it too.