Apologies that this isn't directly related to Jamiroquai, but the BBC currently has an interesting article about how much money goes into creating and promoting a UK single release.
Travelling Without Moving was at number two in the UK album charts this week in 1996. Supersonic, the second single to be taken from Synkronized, was released this week in the UK in 1999. A Funk Odyssey was at number one this week in 2001.