Michigan bluegrass quintet Greensky Bluegrass have announced their New Year’s Eve plans.

The band will play four nights for the holiday, two at the Royal Oak Music Theatre in Royal Oak, MI, on December 30 and 31, then two more on January 1 and 2 at The Vic Theatre in Chicago, IL.

Greensky will be joined on all four occasions by Nicki Bluhm & the Gramblers. The press release also promises “some very special surprises in store for everyone.”

Pre-sale tickets for the shows will go on sale September 14, while general ticket sales will begin on September 18. The band is currently on tour and will be playing tonight at the Rex Theatre in Pittsburgh, PA.