Sir Paul McCartney's wife NANCY SHEVELL has given the rocker a big boost on Britain's annual Sunday Times Rich List, thanks to a combined £710 million ($1.2 billion) fortune.

Shevell's estimated £150 million ($225 million) fortune helps rocket the 71 year old up the Music Millionaires List to number four, behind Zomba Group boss Clive Calder, Sir Cameron MACkintosh and Warner Music Group head Len Blavatnik, who tops the rich list with a £10 billion fortune.

The countdown of the 50 wealthiest music men and women in Britain and Ireland also includes Simon Cowell (£300 million/$480 million), Sir Elton John (£260 million/$416 million), Adele (£45 million/$72 million), and the five members of One Direction, who share a £70 million ($112 million) fortune.

Take That star Gary Barlow, who has recently been accused of tax avoidance, also makes the rich list with a £65 million ($104 million) fortune.

The full list will be available in the Times on 18 May (14).

The top 10 is:

1. Len Blavatnik (£10 billion)

2. Clive Calder (£1.4 billion)

3. Sir Cameron MACkintosh (£1 billion)

4. Sir Paul MCCartney and Nancy Shevell (£710 million)

5. Lord Lloyd-Webber (£640 million)

6. U2 (£428 million)

7. Simon Fuller (£382 million)

8. Simon Cowell (£300 million)

9. Mohammad and Kamaliya Zahoor (£300 million)

10. Sir Elton John (£260 million)