The Macy's Thanksgiving Day parade was praised on social media Thursday after two women were broadcast kissing in what is believed to be the first same-sex kiss shown on-air during the annual event.

Actresses Isabelle McCalla and Caitlin Kinnunen, who star in the Broadway musical "The Prom," shared the kiss at the end of a televised performance of one of the show's musical numbers.

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The moment was praised by LGBTQ activists and other supporters of gay rights on Twitter, who called it an important moment of representation for gay youths.

"Two girls. Just kissed. On live TV. On the Macy’s Thanksgiving Day Parade. I suddenly cried," "Spongebob Squarepants" writer Tina Landau said on Twitter.

"What a lesson you just taught the country on the @Macys thanksgiving parade!" added fellow Broadway actress Caissie Levy.

The two actresses do not have public Twitter accounts, but one of their co-stars, Josh Lamon, tweeted that he was "proud" of the two for the on-air kiss and added the next day that he had been targeted by anti-gay abuse in the hours following the parade.

"The first #LGBTQ kiss in the Parade’s history. We here at @ThePromMusical have never been so proud," Lamon tweeted.