Phil Lesh has announced plans for his annual Halloween celebration, dubbed Phil-O-Ween, at The Capitol Theatre in Port Chester, New York. The three-night run will include a number of unique sets, featuring an exciting array of special guests and collaborations from October 31st through November 2nd.

On the night of Halloween, October 31st, a three-set celebration will take place, kicking off with GEM, the trio whose name is derived from the first initials of its members: Midnight North’s Grahame Lesh and Elliot Peck and Twiddle’s Mihali Savoulidis. Then, Phil Lesh & The Terrapin Family Band will perform a set together. To close out the evening, Phil Lesh and Twiddle will team up for their collaborative project, Phiddle. On November 1st and 2nd, Phil Lesh & The Terrapin Family Band will perform together with Widespread Panic’s Jimmy Herring on guitar.

EXCLUSIVE: Grahame Lesh Talks Midnight North, His Famous Father, And Twiddle Love

The All Hallows Eve collaborations are the latest products of a long-running creative relationship between Phil Lesh, his son Grahame’s band, Midnight North, and Twiddle. Phil Lesh & The Terrapin Family Band (which features Grahame), Midnight North, and Twiddle recently mounted a series of multi-band performances under the billing “Unbroken Train.” The bands intermingled at various points before that as well, with Midnight North frequently joining Twiddle as support on tour and individual members of the respective bands sitting in with the others on several occasions.

The virtuosic Jimmy Herring is also no stranger to the music of the Grateful Dead, having played with Phil as one of his live “Friends” on various occasions in addition to playing with post-Jerry spinoff The Dead and jazz-inflected instrumental tribute band, Jazz Is Dead.

Tickets go on sale this Friday, September 28th, at 12 pm. For more info, or to grab your tickets when they go on sale, head here.