The stars came out last night to celebrate the launch of the new Three Olives Vodka flavor Bubble. Kim Kardashian hosted the event and Erin Lucas of MTV’s The City was on-hand as the celebrity mixologist. Other attendees included Khloe Kardashian, Lance Bass, Jill Zarin (Real Housewives of New York City), Kelly Bensimon (Real Housewives of New York City), and Danielle Staub (Real Housewives of New Jersey), among others.