Formed in 1991, this Ohio-based jam band has hosted more than 50 iterations of Hookahville, a biannual festival usually held over Memorial and Labor Day weekends. Over the decades, the festival has featured national acts such as Ratdog, Gov't Mule, Umphrey's McGee, Béla Fleck & the Flecktones, Blues Traveler and many others. The group has achieved success and longevity largely without the support of mainstream media, corporate management, or even a record label. Now in its 30th year, the group performs tonight at 6 at House of Blues.