Celebrating the new year just minutes away from sister Kim, reality power couple Kourtney Kardashian and Scott Disick were busy tending to hosting duties at Chateau Nightclub and Gardens in Las Vegas on Saturday night (December 31).

The expectant momma and her man first snuck in a little gambling at a nearby casino’s roulette table and a quick stop at the Sugar Factory before making their grand Chateau arrival.

Plunking down 100 bucks per entry into the bash, attendees enjoyed an open bar, midnight champagne toast and festive party favors throughout the night.

Adding to the night’s star power, brothers Benji and Joel Madden provided the sounds for the evening on the hotel’s rooftop – as the celebration had a scheduled end time of 5am!