What was the name of U2’s concert tour that began in 2009?

U2’s concert tour that began in 2009 was called the U2 360° Tour.

The tour supported U2’s 2009 studio album No Line on the Horizon and opened at Camp Nou in Barcelona, Spain, on 30 June 2009. Its name referred to the staging, which allowed audiences to surround the performance area rather than viewing a stage positioned against one side of the venue.

The production featured a large four-legged structure nicknamed “The Claw.” It held lighting, video equipment, and a cylindrical screen above the band, making the stage one of the most recognizable touring designs in rock history.

The U2 360° Tour continued through 2011 and visited stadiums across several continents. It became the highest-grossing concert tour in history at the time, although later tours eventually surpassed its reported total. The tour is distinct from U2’s earlier Zoo TV, PopMart, and Elevation tours.