We’ve already given you a thorough rundown of all the many, MANY celeb guests at Taylor Swift’s 1989 World Tour concert in New Jersey last night (June 10). But among the tens of thousands of enthusiastic Swifties packed into MetLife Stadium, there was one in particular who nabbed the crown for Biggest Fangirl: Camila Cabello.

The Fifth Harmony songstress shared an amazing clip on Instagram of her singing along to Tay’s ballad “Wildest Dreams,” accompanied by a lengthy caption justifying her fan freakout.

“Ok so i have always wanted to go to a @taylorswift show and write 13 all over my body and if my mom hadn't told me to calm down and be "at least a little cool" i DEFINITELY would've been dressed up as a starbucks lover,” Camila began, referencing Tay’s lucky number, “13.”

“Tonight i sang at the top of my lungs to all the Taylor songs that have been the soundtrack to my life- that have understood how I felt more than anybody else did,” she continued. “my sister and i danced like maniacs and i screamed I LOVE YOU!!! when it got quiet and didn't really care who was looking BAHAHA.”

“For anyone that has known me from the beginning you know she is my musical queen- so for that reason- and just me coming to see one of my most magical friends absolutely kill it- TONIGHT. WAS. AWESOME. it's 4 am and im exhausted and happy. LOOK AT THAT CROWD. LOOK AT THEM SINGING. LOOK AT IT.”

Taylor and Camila’s friendship was solidified back in March when Tay and Selena Gomez threw the 5H cutie a star-studded 18th birthday bash. Camila later recounted the whole thing to MTV News, gushing about how amazing Taylor is IRL (as if anyone had any doubt).

Lucky for Camila, the fangirl antics go both ways — just earlier this year, Taylor shared a sweet and funny video of her freaking out when Fifth Harmony’s jam “Worth It” played on her car radio.

It’s safe to say Camila has now set the standard for Swifties everywhere who are lucky enough to see Taylor in concert this year. The only way you MIGHT be able to steal her fangirl crown away? Create that “starbucks lover” costume she was talking about — that’s definitely something we want to see.