"Pain Killer" is a single performed by Danish art punk band, Iceage.

John Norris of Billboard described the track as a "driving standout" on the album, and the music as "Tusk-worthy fanfare of horns".

[2] Evan Rytlewski of Pitchfork called the horns and jazz influence of the song "splashy", and felt their performance was bombastic.

Rytlewski felt the track allows Iceage "let their pheromones fly, flaunting their seductive new sound like it’s a brand new sports car".

[3] In a more mixed review, Stereogum's Gabriela Tully Claymore felt the song was a bit drawn out, but that Sky Ferreira's vocals were a welcome addition.