On the soundtrack to the film Kevin & Perry 'Go Large', Jay sings the track "I'm in the mood for love" on top of backing by Jools Holland and his rhythm and blues orchestra. If you want to know what it sounds like, here is a 30 second RealAudio clip of the track (no longer available).
Today in 2001, Jamiroquai recorded amazing live versions of You Give Me Something, Main Vein, Love Foolosophy and Cosmic Girl for the Jools Holland TV show in the UK.