Southern jam band giants Widespread Panic, blue-eyed soul crooner Michael McDonald, multiplatinum rockers 3 Doors Down, and chart pop hitmakers the Goo Goo Dolls are among the performers slated for the 34th Beale Street Music Festival.The complete lineup for the festival was announced today at a news conference at the Hard Rock Cafe.Organizers for the Memphis in May International Festival confirmed nearly 60-acts for the event, set for April 30 to May 2 at Tom Lee Park.Other notable artists set to play include R&B legend Bobby “Blue” Bland, new wave popsters the B-52s, singer-songwriter John H