The Mother Hips will celebrate their 20th anniversary with the four-CDbix set, Days of Sun & Grass: Unreleased Outtakes, Demos, B-Sides and Live Cuts From Chico’s Very Own 1990-2001 . The archival release is set for relase on September 13.

Each disc represent a different era of the band’s career. The band explains, “Volume One traces the bands’ evolution at Chico State University from 1990 – 1992 when founding members Tim Bluhm and Greg Loiacono were an acoustic duo and includes early sketches of fan favorites illustrating the progression to their four-piece rock ‘n’ roll band. Volume Two concentrates on their road-weary hard-partying major label days and includes outtakes from this period’s recording sessions. Volume Three focuses on their sobered-up days releasing records for independent labels and when their songwriting became more concise and focused. Volume Four is a radio appearance CD most notably featuring the first known interview with Bluhm and Loiacono while they were students in the Chico State dormitory and within a week of their first show together when they were known as Ali and the Cats, and is very telling of what’s to come.”

The box set will also boast cover art from Sierra Nevada Brewery artist Jason Roberson, an 88-page booklet containing vintage photos, posters, press articles and extensive liner notes on each track from the band and those associated with the recordings. The Mother Hips will celebrate the their 20th anniversary with a special hometown show at Chico, CA’s El Rey Theater on September 10.