The “Shake It Off” singer revealed her date for Sunday’s 57th Annual Grammy Awards today and, drum roll please, it’s childhood bestie Abigail Anderson! Taylor shared an Instagram photo of the two when they were 15, and either playing dress-up or about to hit the most hipster of winter formals. She captioned the photo, “My date to the Grammys is…….. @abigail_lauren!! We’ll try to dress as well in 2015 as we did in 2005.#GetReady,”