Project Prom winner Felicity Joy Masone debuted the dress readers selected for her Wednesday afternoon at a pre-prom gathering at her Port Jefferson home — and, safe to say, the late music legend Prince would have approved.

Felicity wore a deep purple Ellie Wilde layered tulle ballgown with a beaded bodice and a swooping, megaruffled skirt from Estelle’s Dressy Dresses in Farmingdale.

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It was a full house at the Masone residence — even by their standards: Vincent and Margaret Masone are parents to four biological children and six who are adopted, including Felicity. Five were on hand for Felicity’s prom dress reveal, as were more than a dozen neighbors who stopped by to take in the pre-prom festivities. Felicity’s date, her boyfriend Austin Cortes, 19, also was on hand, wearing a white tuxedo from Gino’s Galleria Tuxedos in Farmingdale.

Vincent Masone was beaming as he saw his daughter — his fifth child — off to the Comsewogue High School prom at The Watermill in Smithtown in the dress he favored most.

“To be honest, she looked beautiful in all three, but when I saw her in the purple, I said that’s it. She looked stunning,” he said. The purple gown was also Felicity’s first choice.

Felicity, 17, plays guitar and sings at church every week, and works at Uncle Giuseppe’s Marketplace in Port Jefferson Station.

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“It’s everything I wanted,” Felicity said of all that has come with her Project Prom win. She plans to attend Adelphi University in the fall, where she will major in speech pathology.