They're playing "Serenade Me" by Miriam Makeba on boombastic right now. Great swing, mellow ("groove"?) sound, with awesome vocal harmonies, interesting synth horns -- although i think real horns would have sounded a LOT better.
Anyway, it's neat, and would be great for dancing.
I haven't listened to any other tracks on the disc yet.
http://www.amazon.com/exec/obidos/ASIN/B000000PFN