Before He Cheats but the mashup version with Warriors.

Greatest is hard to nail down, but some songs that I think belong in the conversation:

Måneskin - BLA BLA BLA is pretty unhinged.

Bob Dylan - Idiot Wind isn’t unambiguously a breakup song, but the vibes are right there for me.

Kanye’s a piece of shit but See You In My Nightmares is a banger of a breakup song

Beatles - Yesterday is an all time classic

I gave you by Superwolf

This is not a breakup song, but about many things i think. However the allusions to loneliness (or maybe solitude/isolation rather than loneliness) have me slot it partially in the breakup category… “Reckoner” by Radiohead.

Smile by Lily Allen (the music video is unhinged)

Self Destruct by Between Friends (totally hinged)

Baby Bitch by Ween

Break Up (Bye Bye) by the Frock Destroyers

Too Bad by Rival Sons

Joey Dosik, Vulfpeck - Running Away https://www.youtube.com/watch?v=wvpLjcXU3hY&t=222

If you’re the one who wanted to break up: Want You Gone. The song Glados sings from Portal 2.

If not: 50 Ways to Say Goodbye by Train

Dry your eyes - The Streets

Ok just thought of another one that will be good if you like country that is pretty twisted.

https://www.youtube.com/watch?v=UJzp4ljVDi0 David Allen Coe - stains on the pillow where you once laid your head

Unbreak my heart - Toni braxton

Its not right but its okay – Whitney Houston

Before he cheats - Carrie Underwood

From the few artists I know in this thread and any self-descriptive titles, this is going to be rather out there but…

Breaking Benjamin and Three Days Grace are what a friend and I agreed is the perfect breakup music. I think it came up because it made me feel better during a breakup but I didn’t want to continue listening to it to avoid getting sick of it and it losing the effect next time. Or something, idk I was a teenager :p

BB: I will not bow • Crawl • Blow me away
3DG: Break • Scared • Riot

Didn’t know them at the time but Amity Affliction probably fits here as well. Soak me in bleach or Pittsburgh, for example

I still like Babe I’m Gonna Leave You by Zeppelin. Slow and acoustic into an explosion of power, like my emotions during those moments. Fuckin’ love it.