I've seen a lot of artists that change either how their name is spelled or use a slightly differently name depending on the release. I've also seen some artists credit a song to be "X vs. Y", where X and Y were both different aliases of the same artist.

There's also artists that have many names that they perform under. The eurobeat scene is one that brings to mind immediately, since Giancarlo Pasquini aka Dave Rodgers also performs under the names "Derek Simon", "Robert Stone", "Patrick Hoolley", "Mario Ross", "Red Skins", "RCS", "Aleph", "The Big Brother" and "Thomas & Schubert".