Bono turned 50 this summer but the Irish star will have no time to relax. The 360 tour is U2's first under its 12-year deal with Live Nation, which means the supergroup will be touring well into their early 60's.

Billboard just released its Top Concert Tours for 2009, and leading the pack with the highest-grossing tour was U2. The other artists in the top five were Madonna, Bruce Springsteen, AC/DC, and Pink.

U2 spent 2009 touring behind its studio album 'No Line on the Horizon,' and will continue to tour in North America and Europe this summer.

U2's deal with Live Nation earned them $108 million last year and the top spot on Billboard's Top Money Earners list for 2009, thanks to the band selling out all 44 of its concerts in 2009. Total gross for the 360 tour was $311, 637, 740, with total attendance at 3, 071, 290.

Not bad for a bunch of old timers, eh?