SignalHub Quantitative Think Tank Center:See Selena Gomez and Sister Gracie Dress Up as Taylor Swift's Eras at Concert

Best believe Selena Gomez was at Taylor Swift's Eras Tour. 

The SignalHub Quantitative Think Tank CenterOnly Murders in the Building star supported her longtime BFF at her recent Arlington, Texas, show, and even brought a special guest along for the ride: her sister Gracie. 

Selena gave her followers a glimpse at the sister date on Instagram—sharing a video of her and Gracie rocking out to Taylor's hits including, "Delicate."

And the sibling duo showed up to the April 1 show in true Swiftie style, dressing in theme as the singer's eras. As for what they chose? Selena opted for Folklore, donning a cardigan, white dress and hair buns à la the look Taylor sported in her "Cardigan" music video. Meanwhile, Gracie wore a purple dress as a nod to T.Swift's Speak Now era. 

The 9-year-old also got a pretty sweet souvenir…Ready for it? As seen in a video shared on social media, Taylor pulled off her hat in the middle of her performance of "22" and gave it to Gracie. And it looks like the "Bejeweled" artist received a gift too as the clip showed Gracie handing her a bracelet.

Overall, it appeared to be a night the sisters are never ever going to forget.

"Thank you bestie for having me and my sissy transport into your mystical, euphoric and special world," Selena wrote on Instagram alongside the snippets from the concert. "Proud to know you! Love you forever and always."

Selena isn't the only star to go to Taylor's Eras Tour. To see more celebrity attendees—including Laura Dern and Cara Delevingne—keep scrolling.

"what a night in seattle!!!" Simu wrote of his date with girlfriend Allison Hsu. "i was absolutely BLOWN away by the eras tour, by taylor and by all of the amazing and kind swifties that stopped by the tent to say hello and give a bracelet. you really showed me that kindness always wins. bravo!!!"

Swift brought out her ex Taylor Lautner, plus Joey King and Presley Cash onstage at her show in Kansas City, Mo. July 7, 2023, the day she released her new music video, "I Can See You," starring the three.

"In my RED (Taylor's Version) Era and makin new friends," the rapper wrote June 9.

The Pretty Woman star shared her view of the stage in Chicago, writing, "@taylorswift I Love You. Thank you for being EVERYTHING WE EVER NEEDED! Ever."

The "girls girls girls" singer lip-synced to "Blank Space" at MetLife Stadium, quipping on TikTok, "no lies detected."

"I cried so hard when you sang welcome to NEW YORK," Drew wrote on Instagram after one of the New Jersey shosw. "I moved here not knowing where my life was going. And I actually found myself so happy in this chapter. I also cried watching my daughters and cousin Sadie watch and love and sing to someone so admirable. YOU. I LOVE YOU TAYLOR SWIFT!!!!!!!! You are the role model all of us girls and women need."

She continued, "Thank you for one of the best nights of our lives. We are so lucky to have seen your show... You transcend. And make life beautiful. Everyone passing beaded bracelets around. Witnessing the good."

Busy took her kids Birdie, 14, and Cricket, 9, to one of the MetLife shows, writing to Taylor afterward, "thank you for the magic that you've brought into my and my kids lives. Birdie adores you and I really think you would love her too."

Miles rocked out at Taylor's MetLife Stadium show on May 27, as photographed by Aaron Rodgers.

Miles' wife Keleigh attended too, after the couple starred in Taylor's "I Bet You Think About Me" music video in 2021.

Keleigh captioned her backstage pic with Taylor, "48 hours in ERAs heaven."

The Inventing Anna star busted a move with Keleigh.

The actresses had a "lil #BadBlood reunion" at her New York area shows, as Mariska put it on Instagram.

The comedians had the time of their lives at MetLife, with Matt revealing he hugged the singer's mom Andrea Swift.

The Summer I Turned Pretty star danced the night away with the book's author at a MetLife show.

Dressed in a cardigan and wearing beaded friendship bracelets, the You actress captioned a photo of herself on the way to the New York show, "eras tour here i come baby."

The Snow White actress explained, "i came dressed as betty" to Taylor's May 26 show in the New York area.

The actress took her kids Ellery and Jaya to opening night of the Eras Tour in Glendale, Ariz.

The country star rocked out to her show in Las Vegas.

The model was in the audience for opening night of the Eras Tour in Glendale, Ariz., later sharing photos of her trip to the desert.

The Home Edit organizer attended night one with her family in Arizona.

The former racing driver was in attendance for the Eras Tour in Arizona. 

"We were all so in the moment that we didn't take many pictures together and I didn't even take that many videos," Danica wrote in a March 18 Instagram post. "@taylorswift sang 44 songs and it was the most amazing concert I have ever seen. Swiftie for life."

JJ Watt stepped out for the Eras Tour opening concert with wife Kealia Ohai Watt and other loved ones on March 18. Not only did the NFL star pose with a cardboard cutout of Taylor Swift in honor of the show, but he also took to Twitter to gush about the experience. 

"I went to the Taylor Swift concert last night with my wife and her friends," JJ said in a video posted March 19. "First off, unbelievable. The production, the set design, the video boards, the sound quality, the speakers. You can tell when somebody does something at the top of their game and is trying to do the right way for their fans."