The pair even began subtly shading each other, especially after Karlie was spotted hanging with both Katy Perry and Kendall Jenner... two of Taylor's ~mortal enemies~.
However, Karlie was spotted at a Reputation Stadium Tour in Nashville, Tennessee, on August 25, where she was supporting Taylor!
She even hung out in the VIP section of the concert with Tay’s bestie Abigail Anderson, actress Nicole Kidman, Faith Hill and Tim McGraw.
Fans even think that Taylor referenced Karlie as she sang the lyrics “I don’t want you like a best friend”.
After the show ended, Karlie posted a photo with Tay on Instagram, writing, “No one puts on a show like @taylorswift #ReputationTour Nashville was out of this world, I am SO proud of you.”
Best friends forever, right?