Octoplush is a band in Splatoon 3. Their music is played in Return of the Mammalians in most missions in Alterna, and can also be heard by using the jukebox. The genre of most of their music is electronic, although their songs are quite varied within that genre. Their album art depicts many FuzzyOctotroopers standing in lines and has a border with text, bearing a resemblance to the album art of Turquoise October, another band whose music plays in single-player modes.
A unit (or is it solo artist?) who knows how to lay down some really infectious beats. Reputedly, they produce the music heard throughout Alterna, and yet their identity is shrouded in mystery. But no matter how "fuzzy" things get, the Octarians stay in step with the music, diligently and faithfully carrying out their work.
Octoplush is a pun on octopus, with plush possibly referencing the softness of the Fuzzy Octarians. Additionally, the name Octoplush is similar to OCTOTOOL, the Japanese name of Turquoise October.