RESULTS FOR 2009
Ranking: 1,550=
Worth: £35m
Down: £5m
Source of wealth: Music

Manchester-born Kay, 39, had a quiet 2008 with no new recordings released and with his band, Jamiroquai, playing mainly at summer festivals in Europe, plus shows at private promotional gigs for the launch of the new Audi cars in Russia and Germany. Kay is regarded as shrewd operator, building two studios for £1m and leasing them to Sony, so his profit margin is higher. He collects Ferraris and lives in a Buckinghamshire mansion. His company Jamiroquai last showed £8.59m net assets, which included £1.2m for his cherished cars. But with the lack of activity, our rock expert cuts Kay back to £35m.

RESULTS FOR 2008
Ranking: 1,794=
Worth: £40m
Source of wealth: Music