On stage at Coachella, Arcade Fire front-man Win Butler made a crack that seemed to be directed at the various EDM artists who were on the bill.

Butler told the Coachella crowd during Arcade Fire's headlining set, "shout-out to all the bands still playing actual instruments at this festival."

That has rankled DJ/producer/electronic artist Deadmau5.

Deadmau5 took to Twitter to voice his displeasure with Butler and Arcade Fire.