The Dixie Chicks have sold more than 35 million albums worldwide as of December 2015 .
By December 2015 , with 30.5 million certified albums sold , and sales of 27.5 million albums in the U.S. alone , and 40 million albums overall , they had become the top selling all-female band and biggest selling country group in the U.S. during the Nielsen SoundScan era ( 1991�present ) .
Dixie Chicks