Phil Lesh will unleash his inner stoner on June 2, headlining the NorCal Cannabis Cup.

For the uninitiated, the Cannabis Cup is a regional, 21+ marijuana trade show sponsored by HighTimes, featuring “competitions, instructional seminars, expositions, celebrity appearances, concerts and product showcases.”

The NorCal version of the event will be held from June 2-3 at the Sonoma County Fairgrounds in Santa Rosa, Calif.

Additional acts include Blues Traveler and Arrested Development.

Tickets are available here.

In other Lesh-related news, the Grateful Dead bassist will play a “Thunder and Lightning” show at Terrapin Crossroads with Stu Allen, Scott Metzger, Jason Crosby and Jay Lane on May 22.

Get tickets here.