original question: What event was produced by the event producer for the [U2 360¬∞ Tour] tour?
answer: loud tour
answer type: Produced event.
auxiliary information: 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 structure nicknamed "The Claw" was built above the stage, with the sound system and a cylindrical, expanding video screen on top of it. U2 claimed that the tour would be "the first time a band has toured in stadiums with such a unique and original structure." In an era of declining music sales, analysts expected U2 360¬∞ to be a major source of income for the band. Every date of the tour sold out, many within minutes of tickets going on sale. To accommodate the time required to assemble and transport "The Claw" between tour dates, three separate stage structures were required on tour. The 360-degree production increased the capacity of venues by up to 25%, leading to attendance records at over 60 venues. Various themes were incorporated into the shows; portions of the concerts featured outer space themes, due to "The Claw's" resemblance to a spaceship.
Which production was the event producer for the [U2 360¬∞ Tour] responsible for?