[6] "Hallelujah" debuted at number 40 on the Billboard Hot 100 selling over 71,000 copies, becoming the band's second top-40 hit single and the first in nine years since "I Write Sins Not Tragedies" was released in 2006.

[10][11][12] It is the first single not to include drummer Spencer Smith and bassist Dallon Weekes, thus making "Hallelujah" Panic!

"[14] Urie later stated, "When you have to own up to your mistakes, you know, praise that; as long as you take responsibility for your actions, everything else seems it can fall into place if you have that same attitude, so, that's really what it was, it's kind of a play on just, 'yeah, you know, hallelujah, I'm not a sinner', but we are, I mean the song is definitely about that".

[23] An audio video was uploaded to Fueled by Ramen's YouTube channel featuring racially diverse iOS preaching emojis.

All tracks written by Brendon Urie, Jake Sinclair, Morgan Kibby, Aron Wright and Imad-Roy El-Amine.