A souvenir booklet from the 1967 Monterey Pop Festival signed by Jimi Hendrix has fetched $6,500 on eBay. The groovy artifact also includes autographs from three members of the Mamas and Papas.

The seller says his father was at the festival showcasing his work as a Santa Cruz-based artist when a friend collected Hendrix's signature. The legendary guitarist wrote: "Be kool + be groovy and dig the sounds." Hendrix famously set his guitar on fire during his performance at the festival, creating one of rock's most iconic images.

Forty-three years after Hendrix's death, new music is still being released. Up next: A CD collecting previously unreleased performances from the Miami Pop Festival in 1968 will be released on Nov. 5, the same day the documentary ‘Jimi Hendrix: Hear My Train A Comin' will premiere on PBS and be released on home video.