Broadway’s Annual ‘Kids’ Night’ Returns To NYC All kids and teenagers 18 or under can attend a Broadway show at zero cost (so long as they're accompanied by a full-paying adult) on Tuesday, August 20th. Kids Night on Broadway (KNOB) has been a beloved yearly tradition started by The Broadway League that immerses young New Yorkers in the city’s rich arts & culture scene at no cost, “[making] Broadway accessible to a new generation of theatergoers.” Participating shows include: Aladdin, & Juliet, Back to the Future: The Musical, Chicago, The Great Gatsby, Hadestown, Hamilton, Harry Potter and the Cursed Child, Hell’s Kitchen, The Lion King, MJ, Moulin Rouge! The Musical, The Notebook, Once Upon a Mattress, SIX, Suffs, The Outsiders, Water for Elephants and Wicked.