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 Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Production workers at Washington, D.C.'s popular venues 9:30 Club, The Anthem, The Atlantis and Lincoln Theatre have voted to unionize.