Last eve, Omar’s—the swanky, exclusive private dining members club that opened in spring 2013—celebrated its 4th anniversary with a packed “Coming of Age” late-night bash hosted by owner Omar Hernandez. The black tie party brought out guests from the worlds of fashion, entertainment, art, and more, including Christian Siriano, Ellen Von Unwerth, Cameron Silver, Alexandre Assouline, mod Jasmine Poulton, Ann Dexter Jones, Scott Lipps, Alex Lundqvist, Jackie Astier, and Elle Dee, who was on DJ duty. The group mingled, snapped pics, and toasted with Tequila Avion. Also spotted? Ramona Singer, who seemed to have left her Real Housewives of New York premiere party early to attend the shindig. We stopped by her rooftop event before OMAR’s, which she co-hosted along with cast-mates Sonja Morgan, Dorinda Medley, and Luann de Lesseps. Their party brought out many familiar faces from the show, like its fairly regular guest Harry Dubin as well as Bravo’s Flipping Out star Jeff Lewis, who was on Andy Cohen’s Watch What Happen’s Live with Bethenny Frankel later on that night. Returning star Carole Radziwill and new cast-mate Tinsley Mortimer were also mingling at the premiere, yet both women were not listed as hosts on the invite. We asked Mortimer to comment on the new season, but she declined an interview.