Jam Band fans rejoice!  Umphrey's McGee has announced their spring and summer line-up of performances.  Their tour will kick off March 5 in Missoula MT and will wrap up in Port Chester, NY on May 3.  The band also has a couple 4th of July shows in Colorado planned, where they will headline the UMerica concerts along side The Motet and Moon Taxi. In total, the band has released seven studio