Singer Bono has reportedly been told to lose weight so he can cope with a grueling world tour.

The U2 frontman has been ordered to shed the pounds so that he is fit enough for a stint of live shows to promote the band's forthcoming album, according to the New York Post.

A source tells the newspaper, "U2 have an album coming out around January. And then the band is going on another world tour in March and April - so the boys have been told to start exercising all the summer weight off."

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(This news article provided by World Entertainment News Network)