** FILE ** In this Feb. 20, 2008 file photo, U2 band members, from left, Adam Clayton, The Edge, Bono and Larry Mullen attend the Dublin International Film Festival for the European premiere of their concert film U2 3D, Dublin, Ireland. (AP Photo/Peter Morrison, file)
April 12, 2011 3:19:58 AM PDT
LOS ANGELES, CALIFORNIA - April 12, 2011 --
U2 have not only broken the Rolling Stones' record for the biggest tour ever, but they're on their way to shattering it.