The band best known for their funky improv are going metal for Halloween this year. Under the crazy title of The Headbangers’ Left Ball: An Evening Of Heavy moe.tel, the concert goes down at Chicago’s Aragon Ballroom on the feted night. A “normal” concert follows on the 1st.

San Francisco rockers AC/DShe, an all-girl AC/DC cover band, will warm the crowd up for the Ball.

Moe. singer/bassist Rob Derhak sets the record straight on the interesting title: “The left ball is the ball of Satan,” he said. Hmmm.

As has been tradition, a costume contest will be an integral part of the event. The band is also hosting a Best Mullet Contest because, “mullets thrash like no other hair,” according to Derhak. “Do you see Moby thrashing about? I think not.”

Previous moe. Halloween concerts have featured themes like “Willy Wonka,” “The Wizard Of Oz,” “Dark Side Of The Moon” and “The Simpsons,” which came to life at – where else? – moe.s Tavern.

Tickets are already on sale through Ticketmaster.