The Anthem is one of several concert venues working to unionize in Washington, DC. Tasos Katopodis/Getty Images for Community Change Action Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Workers at Washington D.C.'s major concert venues are working to unionize. Production staff as well as employees in food services, box office and those staffing the door at D.C.