#4 - Kenny Chesney - $46.7 million
#6 - Taylor Swift - $29.5 million (she's been out of the country for most of the first half of 2011)
#15 - George Strait, Reba McEntire, & Lee Ann Womack - $18.4 million
#27 - Brad Paisley - $11.9 million
#28 - Jason Aldean - $11.8 million
#33 - Sugarland - $10.1 million
#39 - Rascal Flatts - $9.2 million
#49 - Tim McGraw - $7.3 million
#50 - Zac Brown Band - $6.7 million