Kris Humphries isn't letting his impending divorce from Kim Kardashian keep him from hitting the party circuit.
The basketball star and four guy friends recently popped into a Perrier-Jouet-sponsored bash at hotspot Bagatelle in New York City.
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Providing music for the night: Beyoncé's sister Solange, who was deejaying.
Humphries and his group, meanwhile, headed to the back of the bar for a drink when they got in, an onlooker tells PEOPLE.
"Kris posed for a camera phone with one partygoer," the source says. "They stayed about 40 minutes before taking off."
– Jessica Wedemeyer
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