On Wednesday, The Black Keys' Patrick Carney took some unexpected shots at Nickelback, saying, "Rock & roll is dying because people became OK with Nickelback being the biggest band in the world." In response, the "biggest band in the world" cleverly tweeted "Thanks to the drummer in the Black Keys calling us the Biggest Band in the World in Rolling Stone. Hehe," yesterday.

Beef between rappers is normal in the business today, but who would've thought we'd see conflict between two alternative rock groups? 2012 is already shaping up to be quite the year.