Mr Brown was photographed at the bank’s St. Andrew Square branch in Edinburgh and also at the Gordon St. branch in Glasgow, where he posed for selfies with customers before opening his own account.

The former Halifax branch manager first appeared in their advertising campaign in 2000 singing Extra to Tom Jones’ Sex Bomb.

Howard Brown said: “I’ve always looked for the bank that offers Extra and the £175 switching incentive along with the £5 Reward every month makes this the best account for me. It’s good to have finally found the answer to Who Gives you Extra!”

Bruno Genovese, head of Royal Bank of Scotland current accounts, commented: “Switching bank accounts couldn’t be easier and we hope our highest ever guaranteed switcher offer will give an added incentive for those who have been thinking about switching banks - it clearly has for Howard.”

The switching offer is open to new and existing customers switching their main bank account and runs until 20 April 2020.