‎leroy, also known as ‎​c0ncernn, is a side project by the artist Jane Remover, where they make energetic mashup music under the genre dariacore.

As a subgenre of hyperpop, dariacore can be described as a mix of plunderphonics, EDM, and dance music all mixed together—or simply, an “amalgamation of controlled chaos.”

Jane herself has spoke on how dariacore is viewed as a genre, denying it by mentioning “not a fucking genre” in leroy’s soundcloud bio, as well as tweeting about how it has been watered down to “just a soundcloud tag” by many creators, due to the tag being used very carelessly, as well as songs being tagged with it—despite lacking cover art that is related to Daria.