Former Prime Minister Tony Blair has said U2 singer Bono has the right credentials to become a President or Prime Minister.

Blair praises the Irish star and activist in his much-anticipated new book, A Journey, which was released this week.

He writes that Bono "could have been a president or prime minister standing on his head”.

In the exert, serialised by the Independent, Blair adds: “He had an absolutely natural gift for politicking, was great with people, very smart and an inspirational speaker... motivated by an abundant desire to keep on improving, never really content or relaxed.

“I knew he would work with George [W Bush] well, and with none of the prissy disdain of most of his ilk".

A Journey recalls Blair's time as British prime minister. In the book he also questions his predecessor Gordon Brown's credentials.

U2 are currently on the latest European leg of their 360 Degree world tour.

(by Jason Gregory)