Credit: Denise Truscello/Splash News

What happens in Vegas stays in Vegas unless you're Chord Overstreet (Sam), in which case cameras are following you non-stop. This floppy-haired Glee stud and his co-star, Mark Salling (Puck), hit up Sin City to celebrate Chord's birthday, and who did they party up a storm with? None other than Jersey Shore's very own DJ Pauly D!

Pauly D works at Haze Nightclub at ARIA as part of a monthly gig, and just so happened to be spinning a few tunes when Chord and Mark showed up to dance the night away on February 16.

Credit: Denise Truscello/Splash News

"Mark and Chord were hanging at the table with some other friends, drinking and having fun," a source tells OK!."At one point Chord went into the DJ booth to see Pauly and they fist-pumped and messed around together for a few minutes. The place was insane and everyone was having an amazing time!"

OMG, we love nothing more than when stars from our favorite shows collide in the real world. Of course, it would have been preferable if Snooki had also been a Haze, because then she and Chord could have shared a meatball. Dreams do come true!

Source: OK!