Scott Disick and Kourtney Kardashian at the grand opening of Gallery Nightclub.

Kourtney Kardashian was on double-duty Friday night, celebrating her birthday and hosting the grand opening of Gallery Nightclub at Planet Hollywood Resort in Las Vegas. The brunette entered at the new venue with boyfriend Scott Disick. Kardashian was dressed to party in a navy Contrarian dress and black Christian Louboutin stilettos. The petite reality starlet and business mogul got the crowd pumped as soon as she entered the club. Dancing with her friends, sipping champagne and laughing all night long, Kardashian had a blast at Gallery. The best moment of the night was the presentation of her birthday cake, brought to her table with feather-flashing dancers.

Also spotted at the grand opening of Gallery were Las Vegas’ own Holly Madison, along with her “Peepshow” co-star Josh Strickland, Las Vegas headliner Barry Manilow, “Real Housewives of Orange County” star Alexis Bellino, “Pretty Little Liars” stars Lucy Hale, Shay Mitchell and Ashley Benson and recording artist Lance Bass.

Click on the photos below to enlarge.

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