Loser Theme from Splatoon 3, datamined during the world premiere.

Anarchy Poisons | Snake Mix, Frye Solo - Splatoon 3 OST

Splatoon 3 - Suffer No Fools - Off the Hook VS Fire & Ice

This is not an official Nintendo account. This song is from Splatoon, and made by Nintendo

We’re So Back

Till Depth Do Us Part

Big Betrayal

Deep Cut's Tri-Color Shout!

Blushing Tide

Written by Tansing for My Dirty Disco
Ramshackle My Disco
The Disco Insiders

My Dirty Disco Club
Midnight to 5
Welcome
You Can Dance
All Night Long
Dance

Something About Midnight

AgeRage - Mid Vibes

HelloBong

DROP THAT SPICY WASABI BEAT!

(This is a little spoilery but...) This is what happened to Callie when you finally find her, apparently she became hypnotised by the glasses DJ Octavio gave her.

Splatoon 2 - Bomb Rush Blush - DJ Octavio feat. Callie (Final Boss Phase 1)

Repping the splatlands, we are… DEEP CUT!!
Shiver, Frye, and Big Man!