Celebrate 20 years of musical theatre with us at Theatre Horizon, as sung by Philadelphia and Norristown performers. This retrospective event highlights some of our favorite productions as we look forward to what’s on the “Horizon.” Support American Theatre: a just and thriving theatre ecology begins with information for all. Please join us in this mission by joining TCG, which entitles you to copies of our quarterly print magazine and helps support a long legacy of quality nonprofit arts journalism.