Now entering its 45th year, Summerfest has become an enduring Milwaukee tradition. Dubbed "The Largest Music Festival in the World" (certified by the Guinness World Records), the first Summerfest occured in July 1968 and headlined with Bob Hope. Since then, the festival has hosted thousands of performers from The Doors to Janet Jackson. Want a glimpse of Summerfest in its infancy? Take a look at the Historic Photo Collection for more classic Summerfest photos. Enjoy the show!