VIDEO : Joe Jonas, Sophie Turner Celebrated Engagement In NYC

Joe Jonas and Sophie Turner invited a few dozen of their closest friends and family members to Mamo restaurant in New York City on Saturday to celebrate their recent engagement. An onlooker told Us Weekly, ?Joe and Sophie booked the whole restaurant for a private engagement party. There were 30 people for a sit-down dinner and then they were joined by another 40 people for a party afterward.? The witness revealed that sparklers came out with every bottle of champagne, friends took pictures in a photo booth, and a DJ played some of their favorite songs. Guests included Joe?s brothers Kevin, Nick and Frankie Jonas. Nick attended the party with model Georgia Fowler, who he is reportedly ?casually dating."