Turns out Kris Humphries isn't in much of a party mood after all.
In a completely unsurprising turn of events, the newly separated star has pulled out of hosting an event Saturday at Chateau at the Paris Las Vegas hotel.
Though the club's rep had said just hours ago that he would keep the commitment, Humphries—who said yesterday that he was "devastated" to learn Kim Kardashian had filed for divorce—apparently thought better of it.
A rep for Chateau tells E! News that they haven't yet received "an official cancellation" from Humphries.
But we hear that his pals in Vegas aren't going to hold it against him when the cancellation does become "official."
Humphries is currently in Minnesota with family, while Kim and sister Khloé Kardashian Odom flew to Australia last night for Kardashian Kollection business.
The ladies touched down this afternoon (already Wednesday in Oz) and, per local media reports, will appear on the morning show Sunrise Live tomorrow.
UPDATE Nov. 2, 2011: A rep for Chateau Nightclub just confirmed the cancellation in a statement to E! News, saying: "Kris Humphries has canceled his engagement on Saturday night at Chateau Nightclub & Gardens. We support his decision and recognize this has been a difficult week for Kim and Kris, and look forward to having him back when he is ready."