The U2 singer owns 2.3 per cent of the shares in Facebook through his private equity firm, Elevation Partners, which they bought for $90 million (£57 million) in 2009 and now stands to make a handsome return.

Given the social media company is currently valued at over $100billion (£63 billion), this makes Bono’s share worth over $1.5 billion (£940 million) and puts him well above Paul McCartney, who is currently the world’s richest rock star with a fortune of £665 million.