Looking back over the past 25 years of rootsy, string-based music, the impact of Leftover Salmon is impossible to deny. Formed in Boulder at the end of 1989, the Colorado slamgrass pioneers were one of the first bluegrass bands to add drums and tour rock & roll bars, helping Salmon become a pillar of the jam band scene and unwitting architects of the jamgrass genre. If Leftover Salmon had never played another note after leaving the stage in 2005, the legacy would have been secure; the members’ names etched in the books of history. But today, more than two decades after Salmon first took shape, the band has a new album, "Aquatic Hitchhiker," a new banjo phenom named Andy Thorn, and a new lease on an old agreement. Leftover Salmon is officially back!