Luxury fashion brand L'AGENCE hosted their holiday party at Mariah Carey's Christmas Special Show in NYC. Attendees danced the night away in a private suite at Madison Square Garden as they were serenaded by Mariah Carey. 

Notable attendees included: Nicky Hilton, Ming Lee Simmons, Bambi Northwood-Blyth, Athena Calderone, Elizabeth Sulcer, Mary Leest, and RHONY new cast members Sai De Silva, Jenna Lyons, Ubah and more.