 The U2 360 ° Tour was a worldwide concert tour by rock band U2 . Launched in support of the group 's 2009 album No Line on the Horizon , the tour visited stadiums from 2009 through 2011 . It was named for a stage configuration that allowed the audience to almost completely surround the stage . To accommodate this , a massive four-legged steel structure was built at each show . The tour was the first to use the 3D-enhanced Panasonic PT-DZ21K projectors .
Bono performing at the Rose Bowl in Pasadena, California on August 27, 2010