But singer says band have to do 'something very special' on next album...
U2's Bono has claimed that the band's recent recording sessions have been their best "since 1979".
Speaking on Irish TV programme The Late Late Show, the frontman insisted that he and his bandmates had been enjoying a productive streak in the studio, but also said that they were aware they needed to produce "something very special" on their next LP.
Previously, the singer admitted that U2's last album, 2009's 'No Line On The Horizon', hadn't contained as many hit singles as their previous efforts and said that they needed to write some big-selling tunes in order to survive.
Bono, who claimed there was "no sense of entitlement" amongst the band, said:
We've had the best three weeks in the studio since 1979.
Last month, Bono rubbished reports which stated he was to become the richest musician in the world, overtaking Paul McCartney.
It was thought that when Facebook was floated on the stock exchange its early investors would earn huge amounts of money, including the U2 singer, who owns 2.3 per cent of the shares in the social media site through his private equity firm, Elevation Partners, which they bought for $90 million (£57 million) in 2009.
However, Bono has denied that his share is now worth over $1.5 billion (£940 million), putting him well above Paul McCartney in the financial stakes, who is currently the world's richest rock star with a fortune of £665 million. Speaking to MSNBC, Bono said: "Contrary to reports, I'm not a billionaire or going to be richer than any Beatle - and not just in the sense of money, by the way, The Beatles are untouchable - those billionaire reports are a joke."
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