The Hype Was Real: Taylor Swift's New Music Video Is Everything You Expected It To Be

Selena Gomez makes the first appearance…because they're besties of course.

Quickly followed by Lena Dunham, Ellie Goulding, Zandaya, Karlie Kloss, Gigi Hadid, Cara Delevingne, Jessica Alba, Cindy Crawford and others…basically a sh*t ton of amazing female celebrities.