Arcade Fire have caught the covering bug on their current tour. At Sunday night's St. Louis show, they covered Chuck Berry's "Roll Over Beethoven". Berry was born in St. Louis, continuing a trend: Arcade Fire had played Kansas' "Dust in the Wind" in Kansas City this weekend, Prince's "Controversy" in Minneapolis, and Boyz II Men's "Motownphilly" in Philadelphia, along with a number of other location specific covers. Watch it below, via Consequence of Sound.

They also took the time to kinda sorta poke a little fun at deadmau5, who attacked the band on Twitter last week. The feud began when Win Butler shouted out to "all the bands still playing actual instruments" during their set at Coachella. In response, deadmau5 went on a Twitter tirade that included lines like, "if i wanna watch real artists perform, id pick the opera before wasting a fucking minute of my life with arcade fire."

At Sunday's show, they responded by flashing deadmau5's signature mouse head on one of their video projection masks during "Normal Person". Watch a brief video of it below, via Consequence of Sound. That's the song that begins with a computerized voice asking, "Do you like rock and roll music? / 'Cause I don't know if I do". (The mask also showed a video of former Missouri Congressman Todd Akin, the guy behind the "legitimate rape" controversy.)

Musician beef: Just as passive aggressive as normal person beef!

"Roll Over Beethoven":

deadmau5/Akin/"Normal Person":