Mariska Hargitay attended Taylor Swift's concert and confused fans.  'I thought Olivia Benson was the cat?'

Mariska Hargitay has been solving crimes for more than 20 years as Olivia Benson from “Law & Order: Special Victims Unit.” But it turns out that some Swifties only recognize Olivia Benson’s name as Taylor Swift’s cat.

A proud cat lover, Swift named her three cats after some of her favorite TV and movie characters: a Scotswoman named Meredith Gray after Ellen Pompeo’s “Grey’s Anatomy” character, a doll from rag named Benjamin Button as a tribute to Brad Pitt’s character from his 2008 fantasy film and Olivia Benson, another Scottish fold.

Olivia Benson (the cat) might be one of the most popular pets on the planet. So some Swifties were surprised to learn recently that the “Anti-Hero” singer didn’t come up with the unique name when Hargitay attended one of Swift’s recent concerts in Nashville.

Mariska Hargitay and Taylor Swift holding their cat, Olivia Benson, named after the actor’s character in “Law & Order: Special Victims Unit.” Stefanie Keenan/Raymond Hall/Getty Images

The “SVU” star walked through the crowd on Swift’s “Eras Tour” and a hilarious Tik Tok Video captured fans realizing that Olivia Benson isn’t just a cat.

In the clip, a fan repeatedly yells “It’s Olivia Benson! I love you Olivia Benson” in Hargitay as she greets a group of concertgoers. Before the video ends, another fan jumps into the frame and asks “Who is Olivia Benson?”

She wasn’t the only one who had never heard of the fictional character before. Some other fans also expressed their confusion in the comments.

“I thought Olivia Benson was the cat?” said one TikTok user.

Another person responded and wrote: “Same” with some crying face emoji.

When some fans said they couldn’t believe some people weren’t familiar with the iconic “SVU” character, one chimed in, saying, “I don’t know where I’ve (been) but who is Olivia Benson…”

the confusion continued Twitter after a social media user posted a screenshot of the TikTok video with the message “I thought Olivia Benson was the cat?” comment.

Multiple Twitter users weren’t shy about revealing that they also think of Swift’s Scottish fold when they hear the name Olivia Benson.

“Ngl when I saw someone tweet that Olivia Benson was on the show I was really looking for a cat in the photo,” one person said. tweeted.

One fan was in complete disbelief. “Wait, is there a person named olivia benson?” they asked.

Someone else mixed the character up with Swift’s other favorite drama series. “Wait, isn’t Olivia Benson the name of the Grey’s Anatomy character, not the actor?” a fan asked.

There were many viewers of “SVU” who made it clear that everyone should meet Hargitay and her beloved on-screen counterpart.

“I can’t believe someone would disrespect mom benson like that,” one Twitter user saying.

One TikTok user made sure to show respect for Olivia Benson by including her full caption.

“That’s CAPTAIN Olivia Benson of the Manhattan SVU, Precinct 16,” one comment read, including a crown emoji.

Hargitay has made a surprise appearance on one of Swift’s shows before. The 59-year-old actor and the “Love Story” singer became friends after Swift, 33, shared that she is a longtime fan of the NBC series. The actor even appeared in “Bad blood” music video.

In 2015, Swift introduced Olivia Benson to Olivia Benson for the first time backstage at his show in Philadelphia for the “1989” tour.

The musician captured the special moment on camera and uploaded the meeting to Instagram.

In the clip, which has since been deleted, Swift narrated Hargitay’s interaction with the adorable cat.

“This is Olivia Benson meeting Olivia Benson,” Swift said as she filmed them. “Things are going well so far.”

Hargitay also joined Swift onstage and the two strutted in front of the crowd during her performance of “Style.”

After the show, Swift wrote in a now-deleted tweet: “Everyone screamed so loud when @Mariska came out during Style I’m considering just taking her on tour with me. #ReinaMariska #Justicia”.

Hargitay responded and thanked Swift for an unforgettable night.

[email protected] It’s an honor to share the runway with you! And so tempted to get on the tour bus…#HastaNextTime,” she said at the time.