A MONSTER indeed! Arthur Fogel of concert promoters Live Nation tells the new Rolling Stone that Lady GaGa's world tour is on track to earn between $150 - $200 MILLION before it wraps in 2011!
The writer of Forbes Magazine has spoken, Beyonces 2009-2010 I Am...Tour along with I Am...Yours Live In Las Vegas grossed over $170,000,000 worldwide making it one of the most successful female tours OF ALL TIME.