Sabrina Carpenter considers Taylor Swift to be one of her “best, best friends”. The 25-year-old pop star opened for Taylor on her Eras Tour earlier this year, and Sabrina has developed a close bond with the Grammy-winning star. The blonde beauty told Variety: “Taylor is a rock star! She’s just such a gangster with all of it. “No matter what people are saying, everything that I’ve ever seen her tackle, she’s done so with grace. “The posts about me having to ‘ask for her permission’ – no. She’s one of my best, best friends, and we grab dinner or text and catch up like you would with your best fr…