Halsey has been experimenting with her style more and more musically, from the punkness of Nightmare to the hoedown vibes of You Should Be Sad, and now she's gone full hard rock frontwoman with a new song called Experiment On Me.
The song is out as part of the new Birds Of Prey film soundtrack and is one of two songs she worked on with heavy lords Bring Me The Horizon - the first was one we heard on Bring Me The Horizon's surprise EP back in December.
Experiment On Me features pretty heavy production thanks to the British band and fits perfectly into one of the film's many fight scenes - Halsey screeching down the microphones while Harley Quinn beats the shit out of some villains? Sign us up.
Halsey's a known lover of the punk and emo worlds, having sung along to My Chemical Romance, jumped on stage with Panic! At The Disco and covered Death Cab For Cutie for triple j Like A Version. She's even thrown down in the pit for The Story So Far.
The full Birds Of Prey soundtrack is out now along with the film, and it features some absolutely killer new songs from an array of women, including K.Flay, Doja Cat, Lauren Jauregui, Saweetie and Megan Thee Stallion.