NORTH END SWING DANCE PARTY, Sunday, April 21, 6-9 PM , Calumet Theatre Ballroom. The Michigan Tech Swing Club is throwing their Spring Swing Dance, with the Backroom Boys Jazz Band playing live dance music. FREE and open to the public (donations to the MTU Swing Club gratefully accepted). C'mon over and try out your swing, lindy hop, charleston, or foxtrot moves. Or just watch these good-looking kids do their beautiful steps. Sunday, 6-9 PM, Calumet Theatre Ballroom.