Calvin enlisted the rising supermodel to star in his new music video.
Taylor shades Katy Perry in concert.
Gigi legit has a shirt with her and Joe's couple name.
Taylor shows off more behind-the-scenes stunts from her star-studded "Bad Blood" music video.
When you're Taylor's best friend and she invites you to sing on stage, this happens.
Just call her Fairy Gaga Mother.