The San Francisco Giants will celebrate the 50th anniversary of that town’s biggest musical export, The Grateful Dead, when they host the Washington Nationals on August 13th.

Fans who purchase the special event ticket package will receive a collector’s-edition Grateful Dead-themed Giants item, commemorating their 50 years of success, and members of the band and the late Jerry Garcia‘s family will be on hand for a special pre-game ceremony on the field. Proceeds from every special event ticket sold will be donated to various non-profits near and dear to the band’s heart.