FILE - In this Sept. 29, 2012 file photo, guitarist Dan Auerbach of The Black Keys performs at the Global Citizen Festival in New York's Central Park. The Black Keys are remaining vigilant when it ... more 

FILE - In this Sept. 29, 2012 file photo, guitarist Dan Auerbach of The Black Keys performs at the Global Citizen Festival in New York's Central Park. The Black Keys are remaining vigilant when it comes to sound-a-like songs. The Nashville duo is suing Pinnacle Entertainment in New York federal court. (Photo by Evan Agostini/Invision/AP, File) less