Posters will appear on 500 sites across southern England leading up to Christmas, with four executions picking up the themes of a current TV campaign.
John Roberts, managing director of Fuller’s Beer Co, said: “We’ve received such fantastic feedback about our campaign that we decided it was time to step it up a notch and bring it to a whole new audience.”
May added: “London Pride is a British classic that deserves wider fame and fortune. More than that, it’s absolutely bloody lovely. I don’t really do advertising, but for a beer like this, I’m happy to make an exception."
The poster ads are part of a £2 million campaign comprising TV, digital and print elements.