Mike Gordon’s set at Hulaween this weekend will feature a pair of special guests as the Phish bassist announced via his Instagram that both Madi Diaz and Emily Elbert will sit in with him on Friday.

Diaz, a former Berklee College of Music student, has found herself on tour with the likes of The Civil Wars and others. She recently released her new album Okay to Be Alone earlier this year.

Elbert is a former member of Esperanza Spalding’s experimental jazz and theater project. Also a former Berklee student, has previously opened for G. Love, Victor Wooten, The Wood Brothers, Joan Osborne and a number of others.

Mike Gordon Band will hit the stage on Friday in Live Oak, FL.