Newly engaged Charlotte Church, Katherine Jenkins and Leona Lewis have topped the young musicians category of the 2010 Sunday Times Rich List. The three singers came joint first in the millionaire musicians under 30 category and are all said to be worth £11million. With £10million Katie Melua came joint fourth with Cheryl Cole, who dramatically increased her worth from 2009 thanks to The X Factor. Cheryl's boss Simon Cowell increased his fortune by £45million to take it to a total worth of £165million. The full list will be published this Sunday.