Taylor Swifthas had numerous iconic friendships over the years with everyone fromSelena GomeztoGigi Hadid.

Case in point, Swift’s friendship with singer/songwriter/producerJack Antonoff.

Swift, however, changed everything for him.

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Antonoff took toInstagramfollowing their Grammy win and detailed exactly how this happened.

“You are the one who let me produce records first,” he wrote in part.

“Before you i just ‘wasn’t a producer’ according to the herbs.

Taylor Swift and Jack Antonoff at The Grammys

i just wasnt let in that room.

So, how did Antonoff and Swift become friends in the first place?

The song was featured on the soundtrack for the film “One Chance,” starring James Corden.

Taylor Swift hugging Jack Antonoff

She gushed, “His excitement and exuberance about writing songs is contagious.

He’s an absolute joy.

That’s why everyone loves him.

Lorde and Jack Antonoff

I personally wouldn’t trust someone who didn’t.”

“I’d been trying to produce for a while,” he shared.

“And then, suddenly, I was allowed to be a producer.”

Lena Dunham and Jack Antonoff

The Bleachers singer also toldRolling Stoneabout the moment that Swift gave his production choices the green light.

“We made ‘Out of the Woods.’

And I was like, ‘That’s it?’

(already in current published article)

She was like, ‘Yes, perfect.'”

And it’s what I’m best at.”

And it certainly wasn’t the last time he showed off his skills while collaborating with a global superstar-turned-friend.

Jack Antonoff playing the guitar

Antonoff addressed the gossip in a now-deleted Tweet available viaSpin.

Those relationships are deeply important and sacred.

With that said, I’m not seeing anyone.

“That’s just basically stuff she’s told me.”

It would also be mundane at times."

Antonoff spoke about their insane connection, and speedy songwriting, forRolling Stoneduring a June 2021 interview.

It’s rare that you just, like, blurt out a whole song.

It’s sort of like, ‘Whoa!

Oh, my God, what happened?

It can happen like that?’

That’s when it feels like a movie."

This kind of magic wasn’t a one-off occurrence, however.

“We wrote that song in a second,” he told the host.

“We didn’t plan to write it.

I think if you plan to write a ballad, you always get less than you hope for.”

The singer also released a statement available via herInstagram story highlights.

Could this mean there are more behind-the-scenes videos of the pair writing music together on the horizon?

He had previously co-produced with Aaron Dessner on Swift’s albums “Folklore” and “Evermore.”

But Antonoff and Swift are sure to have yet another hit album on their hands come October 21.