Just give Sia the Queen of the Modern-Day Soundtrack crown already (I just made this up, but it should be a real thing), because she just unleashed yet another stellar film tune. Titled "Waving Goodbye," the Aussie star reunited with Diplo for The Neon Demon soundtrack cut.

“So one hand is holding your body / The other is waving goodbye / I love you, but it’s your turn to cry,” Sia belts over Diplo's electronic production that's filled with clamoring and slighty eerie synths.

The collaboration comes after the two worked together on "Elastic Heart" for 2013's The Hunger Games: Catching Fire. Sia also appears on the Finding Dory soundtrack with her cover of Nat King Cole’s “Unforgettable."

The Neon Demon is a psychological thriller starring Elle Fanning, Keanu Reeves, Christina Hendricks and Jena Malone, and is about a young model who moves to Los Angeles and unknowingly befriends murderous women in the industry. It's out in theaters today, so check out the trailer below.