_via the band’s Facebook_

Tonight, Dumpstaphunk will celebrate Halloween by bringing their annual Dumpstaween show to Sweetwater Music Hall in Mill Valley, CA, and the band will be once again joined by venue proprietor Bob Weir for the performance.

Weir will reprise his guest role, as the Grateful Dead guitarist also joined Dumpstaphunk a year ago, helping the band out on the Dead’s “Shakedown Street,” The Beatles’ “Dear Prudence,” Bob Dylan’s “Knockin’ On Heaven’s Door” and some New Orleans staples, “Iko Iko” and “Big Chief.” Former Dumpstaphunk drummer Nikki Glaspie also sat in at points throughout the night.

More information on tonight’s show is available here. Watch video clips from last year’s Halloween sit ins with Weir and Glaspie here.