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Justin Bieber And Kourtney Kardashian Are The Cutest Halloween BFFs

So cute!

Justin Bieber's been busy – revealing the cover art for his new album, pursuing legal action over those leaked nudes. You know, the usual. But the Biebs wasn't too busy to have some fun on Friday night with Kourtney Kardashian at Universal Studios in Hollywood.

Bieber shared an adorable picture of the two at Universal's "Halloween Horror Nights" wearing 3-D glasses. Of course, Bieber is tight with Kourtney's little sisters, Kendall and Kylie, and he's even partied at the pool with Kourtney's son Mason, but we love seeing Kourt and the Biebs' budding friendship!