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Last night, as the Memorial Day Weekend crowds packed XS nightclub at Wynn Las Vegas to kick off the summer season, Ryan Seacrest stepped into the forefront of the DJ booth to take in the experience beside iconic DJ David Guetta. The American Idol host, E! News front man and radio personality stepped onto stage to say hello to the dance music superstar and then stayed by his side to experience the set from the music conductor’s control center. As special effects went off, Seacrest got into the vibe, raising his hands and dancing alongside Guetta for a few tracks.

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In separate groups seated at VIP tables flanking the packed dance floor included UFC mastermind Dana White, retired mixed martial arts champion Tito Ortiz, Golden State Warriors’ Festus Ezeli, plus singer Mike Posner.

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Friday night, celebrity gossip aficionado Perez Hilton was spotted stage-side with friends taking in Steve Angello’s DJ set into the early hours of the morning.

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The party continues tonight with a special edition of Night Swim featuring Avicii and closes Memorial Day tomorrow with Zedd at the helm of the DJ booth.

Photo: Danny Mahoney/XS Las Vegas