Lady Antebellum

   Earning: $20 million

 

Lady Antebellum poses at the Staples Center during the 54th Grammy Awards in Los Angeles, California, February 12, 2012. [Forbes.com]

The country-pop sensation performed over 100 shows during our scoring period, enough to edge Adele --despite the fact that the British songstress prevailed in terms of number of Grammys won.