Kris Humphries

Kris Humphries Credit: Kris Humphries (Getty Images)

Surprise!

Kris Humphries made an unexpected showing at the Betsey Johnson after-party Monday night.

The ex-Mr. Kim Kardashian stopped by the designer's bash at Stone Rose Lounge unbeknownst to everyone — including event organizers.

"He wasn't on Betsey's list. It was a big surprise, actually," a source told amNewYork.

The newly single Nets forward also "didn't speak to any girls at all," preferring to hang out with the entourage of guys he arrived with, the source added.

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