The Grammy #1 Grammy Tour will surely be on the list.
I predict 15-17M for the tour gross. and you?
http://www.pollstarpro.com/files/Charts2015/2015MidYearTop100NorthAmericanTours.pdf
http://www.pollstarpro.com/files/Charts2015/2015MidYearTop100WorldwideTours.pdf
13.1M$ for 146,795 people and 1,007,692$/city average