Last night, Taylor Swift's highly anticipated "Bad Blood" music video premiered at the Billboard Music Awards. Paramore frontwoman Hayley Williams stars in the clip as the Crimson Curse. She and Swift are joined by a legendary cast, which includes Kendrick Lamar (who drops two verses as well), Ellie Goulding, Jessica Alba, Selena Gomez, Lena Dunham, Hailee Steinfeld, Zendaya, Karlie Kloss, Lily Aldridge, Cindy Crawford, Cara Delevingne, Mariska Hargitay, Ellen Pompeo, Martha Hunt, Serayah and Gigi Hadid. Check out the video below and leave us a comment with your thoughts.

Hayley Williams - The Crimson CurseUPDATE: Hayley Williams reveals actual meaning behind her Crimson Curse moniker