On Monday morning, a strange sight overtook Times Square: A ballet class.

At about 7 a.m., around 300 dancers — boys and girls, men and women — took turns glissading across the concrete at 44th Street and Seventh Avenue, which was transformed into a scene from “Fame.” Piles of dance bags formed mountains. Supporters held signs with messages like “#metutu,” “Boys Dance Too” and “ I Wish I’d Started at 6!!! ” It wasn’t confrontational, but it did make a statement.

The class was a response to Thursday’s “Good Morning America,” on which Lara Spencer, a host, laughed at the news that Prince George was planning to study ballet. “We’ll see how long that lasts,” she said. On Monday, she apologized for her remarks.

“I screwed up, I did,” she said. “The comment I made about dance was insensitive. It was stupid and I am deeply sorry.”