Joe Jonas, 28, and Sophie Turner, 21, celebrated their engagement at Mama in New York City this weekend.
The pair shut down the busy restaurant so that they could celebrate in private with friends and family.
Groom-to-be Joe brought the house down with a version of his mega hit 'Cake By The Ocean'.
His brothers Kevin Jonas and Nick Jonas also took to the stage to celebrate with their brother.
Plus size model Ashley Graham was spotted hitting the dance floor with Game Of Thrones beauty Sophie as the two women celebrated at the bash.
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