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Kim Kardashian

Kim Kardashian, Kanye West, Kendall Jenner, and Kris Jenner Party It Up in Ibiza (PHOTOS)

What happens in Ibiza stays in Ibiza, right? Unless you're famous and posting everything that happens on Instagram, that is.

Kim Kardashian, Kanye West, Kendall Jenner, and Kris Jenner head to the Spanish island over the weekend, to celebrate Givenchy Artistic Director Riccardo Tisci's birthday. The summer party brought lots of celebs, including Paris Hilton, Kate Moss, and Justin Bieber — all of whom Kim, Kanye, Kris, and Kendall hung out with. Justin was even spotted cuddling up to Kendall — and to Kris! "@kendalljenner @kyliejenner who's your daddy," he wrote on Instagram, alongside a photo of himself holding Kris's waist. We feel weird about it.

Kim also posted a photo of herself lolling it up with Paris Hilton. It looks like these two put all of their old friend drama behind them!

Click through the gallery to see photos from the star-studded event. What do you think of all the celeb sightings? Sound off in the comments!