Ellen Pompeo Channels Luna in Taylor Swift's 'Bad Blood' Video!

Taylor Swift just took to Twitter to unveil a new poster of Ellen Pompeo in her highly anticipated music video “Bad Blood.”

“Meet Luna. @EllenPompeo #BadBloodMusicVideo,” the 25-year-old entertainer captioned the pic on Twitter.

PHOTOS: Check out the latest pics of Taylor Swift

Ellen added about the video, “This girl is a gem taylorswift.”

Martha Hunt, Jessica Alba, Serayah McNeill, Ellie Goulding, Hailee Steinfeld, Lena Dunham, Zendaya, Gigi Hadid, Lily Aldridge, Kendrick Lamar, and Hayley Williams are also featured in the Joseph Kahn-directed video!

Make sure to watch the 2015 Billboard Music Awards for the premiere of “Bad Blood.”

Bigger pic inside…