2011 turned out to be a resounding comeback year for the live music business, including a new record for the highest-grossing and most widely-attended tour of all time, U2's three-year 360° tour. The list of the Top 25 Tours comprises a healthy mix of genres and generations, from country stars Taylor Swift and Kenny Chesney to classic rockers Bon Jovi and Roger Waters -- and of course, a few pop divas like Gaga and Britney.
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