In the age of “Hamilton” and “Aladdin,” when shows can gross $2 million a week, gay bars are reflecting the boom with brassy Broadway nights.

At three weekly bar nights around town, gay people sing along to theater tunes, cheer Broadway drop-ins and watch drag queens do musical numbers. The combo may not be new (Splash, a now-closed club in Chelsea, hosted Musical Mondays for over two decades), but it’s certainly growing.

“Broadway and the gay community have always belonged together,” said Clay Smith, who performs under the drag name Delighted Tobehere.

Until recently, when Delighted got a lot of out-of-town bookings, Mr. Smith hosted Razzle Dazzle Wednesdays at Pieces, a gay bar on Christopher Street. The crowd of “theater queens” came to see Delighted belt Broadway standards, while the video screen showed films like “Fame.”