I have been doing some work on the theme of a French breakfast for an end of term treat and am organising a song / dance competition between two groups.
I have re-written lyrics to Kylie Minogue's "Can't get you out of my head". The advantage of using known tunes is that you don't have to teach them. The repetitive nature of the song, whilst annoying musically, at least makes learning the lyrics very easy! The colour coding highlights the different parts of the song, the verse, chorus and the bridge.
Here is the backing track
You can download the backing track from a really great site http://www.karaoke-version.com
You have to pay for the track but this makes it legal!
This is the direct link to this particular track.
To teach the tune, I edit the mp3 using a sound editor called NCH Wavepad and slow it down. If necessary you can also change the pitch to get a higher or lower key.