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Adorably arresting: Mariska Hargitay meets Taylor Swift's cat Olivia Benson

On Saturday night, a moment that's been a year in the making came to fruition: "Law & Order: SVU" star Mariska Hargitay met Taylor Swift's cat Olivia Benson.

It was a magical moment, primarily because Olivia Benson isn't just an unusual name for a cat — it's the name of the character Hargitay has played on the long-running NBC show since 1999.

Naturally, the purrfect meetup was captured on camera, complete with Swift narrating the exchange and posting it on Instagram.

Olivia Benson meeting Olivia Benson. @therealmariskahargitay

A post shared by Taylor Swift (@taylorswift) on

"This is Olivia Benson meeting Olivia Benson," whispers Swift. "Things are going well so far."

MORE: Why Mariska Hargitay considers Taylor Swift her 'little angel'

The friendship between Harigtay and Swift has been growing for a while now. The TV actress noted in May that she and the pop star had originally met at the Met Gala, then ran into each other at a concert. Hargitay next had a brief cameo in Swift's music video, "Bad Blood."

This time, Hargitay was in Philadelphia for Swift's show, and even came out on stage during "Style." The historic Olivia/Olivia meeting happened backstage.

MORE: Taylor Swift names cat after Mariska Hargitay's "Law & Order: SVU" character

After the show, the mutual admiration society continued on Twitter:

So who knows? Maybe Swift will find time to turn up as a guest on "SVU" one of these days. If nothing else, she's probably got a cat sitter whenever she wants one.

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