Be cool, y’all! Real Housewives of New York City star Countess LuAnn de Lesseps dropped her brand-new single, “Girl Code (Don’t Be So Uncool),” on Watch What Happens Live on Tuesday, June 23, accompanying the debut of her latest song with a hopping performance.

The Countess, 50, who appeared on the show with castmates Sonja Morgan and Dorinda Medley, took to the stage in a slinky white sequined minidress with a plunging neckline. With Andy Cohen, her fellow Housewives, a live band, and several backup dancers joining her, de Lesseps confidently gripped the mic as she sang along to her latest track.

With that, she unveiled the super auto-tuned dance anthem that will most likely be playing across the Hamptons all summer long. The lyrics of the song, “Don’t be so uncool / Now I gotta let you go,” were inspired by a disastrous confrontation between de Lesseps and her fellow RHONY stars in Turks and Caicos.

De Lesseps was featured in promos for the show delivering the most memorable line of the entire season: “Be cool. Don’t be all, like, uncool.”

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This isn’t her first foray into music, of course. De Lesseps’ latest work follows her smash anthem “Money Can’t Buy You Class” and its subsequent single, “Chic, C’est La Vie.”

Listen and watch above!

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