nightcore

Etymology
🇰🇲 from Nightcore, the name of the Norwegian duo who created the genre, who said their name meant "we are the core of the night, so you'll dance all night long."

Around 2008, others started making their own songs in the same style and used the term not to refer music made by the duo, but to the new genre of music as a whole. As this usage spread and knowledge of the original duo faded, the term was as  in the same style as other music genres like, , etc.

Noun

 * 1) A plunderphonic style of music based on taking an original track and speeding it up, increasing its pitch. Usually associated with visuals of anime-style artwork.