Taylor Swift is Sabrina Carpenter's biggest fan, which goes without saying, given the "Espresso" singer's large number of enthusiastic groupies.

Carpenter took to Instagram to celebrate some of her most recent and most impressive career victories with a series of photos, writing, "And just like that you guys sold out the entire Short n' Sweet tour, Espresso hit #1 on pop radio, and I'm this Slippery Slope :')Thank you so, so, so much!" He wrote!

"Can't wait to see you on tour."

Swift topped the comments section with, "SUMMER OF SABRINA AND MAY IT CONTINUE FOREVER."

Carpenter was the opening act on Swift's Eras tour

But of course, they were the opening act on Swift's Eras tour.

But of course, Swift was not the only one to praise Carpenter's amazing accomplishments. In particular, Zara Larsson wrote, "Oh, that's the Queen's crap," and we couldn't agree more.

The "Fortnite" singer's declaration that this year is "Sabrina's Summer" couldn't be more true as Carpenter continues to achieve new milestones. In June, for example, her song "Please Please Please" stole the #1 spot on the Spotify charts from her own song "Espresso." To celebrate, the pop star turned herself into a Spider-Man meme, once again showcasing her signature sense of humor.

As for Swift, her Eras tour continues without Carpenter, with Paramore as the opening act instead.

Swift, who is currently performing in Amsterdam, is scheduled to return to the US via Zurich, Gelsenkirchen (aka Swiftkirchen), Hamburg, Munich, Warsaw, Vienna, and London before returning to Miami on October 18.