The richest musicians in Britain have been revealed by The Sunday Times Rich List.
Ora, who is set to release a second album later this year, is 11th in the list of wealthiest young musicians. Of the 1,000 people on the list, 145 are billionaires. Mr Walker spent £97m on Blackburn Rovers before it was sold.
He went to Beverley Grammar School, studied chemical engineering at Birmingham University, and got an MBA from London Business School, according to a Financial Times profile.
Mr Ratcliffe's firm is now locked in a legal battle with the Scottish government over its moratorium on fracking.
Her wealth increased by £15 million a year ago.
Mr Ratcliffe is chairman and CEO.
The List says profits soared by more than 50 per cent in 2016 at Malcolm Healey's West Retail Group, based at Hotham in East Yorkshire, which includes Wren Kitchens and the electronics retailer Ebuyer.
In 2016, he told the BBC the government needed "backbone" when negotiating its exit from the EU.
Mr Whittaker, 76, owns almost 27 per cent of property group Intu, which has 20 shopping centres in the United Kingdom and Spain - including Manchester's Trafford Centre, and is worth £2.25bn, up £50m on the previous year.
Their fortune jumped by £4.44 billion on 2017, with their India-based auto manufacturer Ashok Leyland and Mumbai-based IndusInd Bank having a particularly successful year.
Sir Len Balvatnik was listed in third place at £15.26bn, after being knighted this year for services to philanthropy.
Meanwhile, disgraced ex-BHS boss Sir Philip Green's wealth tumbled £787m to £2bn following sales failures at Topshop and Miss Selfridge, as well as a commitment to paying £363m to settle the BHS pension scheme.
There are now 141 women on the list, with Charlene de Carvalho-Heineken of the brewing dynasty ranked highest at number six.
"The recent volatility of global stock markets have provided opportunities for the City's richest hedgies to gild their wealth", Robert Watts, who compiles the Rich List said. Gone are the days when old money and a small band of industries dominated the Sunday Times Rich List.
'Aristocrats and inherited wealth has been elbowed out of the list and replaced by an army of self-made entrepreneurs.