In case you've been living in a cave for the past few days, U2 announced the first details of their 360 world tour this week. The extensive stadium tour begins in Barcelona on June 30th, with the rockers making at least one stop at Croke Park on July 24th. Tickets go on sale on March 20th. The Dubliners' latest album No Line on the Horizon, went straight to the top of the charts in the UK and Ireland last weekend.