After the event, the singer-songwriter said: "I'm doing it to draw attention to the fact the bankers seem to think it's business as usual now.

"They're starting already to talk about paying the kind of excessive bonuses that got us into all this trouble in the first place, whilst the rest of us are being softened up for public service cuts.

"Considering that this hole in the public purse has been caused by the bailout for the banks, the bankers should be leading the way in making economies."

RBS, which is 84% owned by the taxpayer following a string of bail-outs, is expected to pay millions of pounds in bonuses to its investment bankers this year.

Bragg, who released the hit album Talking With The Taxman About Poetry in 1986, is urging people to send letters or e-mails to the chancellor as part of his online campaign.

Asked previously about the prospect of going to jail for refusing to pay his taxes, Bragg said: "I'm hoping it won't come to that.

"This is to draw attention to the issue. Either we own 84% of the company or the entire thing is a sham.

"I'm fed up with no-one doing anything about it."

84% owned by the public.

Fine, pay them a bonus, if there is anything left after each and every British citizen is paid a dividend.

Amnesia, I'm pretty sure they are breaking up RBS - I remember reading something about it in the news.

As for bonuses, I don't see a problem with them being paid.

It's in our interests for RBS to perform well. To perform well they need good people working for them, and if you don't pay them enough they will leave.

Obviously, set the staff clear goals and only pay the bonus if they are reached. If the staff are performing, why not pay them for it? It's a win-win.