The band's art piece is set to sell for millions
Paul McGuinness says U2's next album won't be given away free
The Edge says band are 'getting serious'
Three more records follow new edition of 'The Joshua Tree'
Band announce groundbreaking live contract
Bono and company begin work in Dublin
Proceeds from U2 star's event surpass expectations
The megaband's 'Vertigo' film hits UK's biggest screen
Stars combine efforts for New York charity event
Band's Manager hints Irish group may consider residency