U2 frontman Bono's philanthropic efforts have been laughed off in a new book - after its authors branded the rocker's credit card campaign bogus.
The star launched his global RED brand in 2006, partnering huge retail companies including Gap, American Express and Converse who share profits to help fight AIDS in Africa.
But authors Steve Lowe, Alan MCArthur and Brendan Hay insist the musician's partnership with the credit giant is just a gimmick.
In Is It Just Me or Is Everything S**t - Insanely Annoying Modern Things, they write: "Certainly, if you get one of Bono/American Express' Red Cards (where a tiny percentage of your capricious spending is forwarded on to the poor starving African babies) and you spend, spend, spend enough with it - you know, really absolutely totally ruining yourself - you could end famine. All of this while living in a cool contemporary apartment drinking crisp white wine."