In an email obtained by TMZ last summer, Jack White ripped The Black Keys front-man Dan Auerbach.  White and Auerbach both have children in the same Nashville school.  White told his ex-wife, "I'm going to have to be sitting in kids chairs next to that a**hole with other people trying to lump us in together...he gets yet another free reign to follow me around and copy me."

Auerbach has little to say on the subject.  The guitarist tells Rolling Stone, "I don't know him, so it's extra-unexpected."

But, Auerbach's bandmate, drummer Patrick Carney, is rarely at a loss for words.  Carney defended Auerbach and said Jack White "sounds like an asshole" when Rolling Stone asked about the musician.

But, Carney also has sympathy for White.  The email in question was private.  But, TMZ got their hands on it.  That does not sit well with Carney.  Carney explains:

"I actually feel embarassed for him...We've all said fucked-up shit in private, and divorce is hard...I really think personal things are personal things. Like, TMZ? Honestly, they should be fucking ashamed of themselves, that they make a living dragging poor souls that have nothing, that aren't famous, into this world.  Everybody should be scrutinized? I don't believe that."

 Read the full interview here.