According to Wiki: A remix is an alternative version of a recorded song, made from an original version. Remixing is the adoption, alteration, and recombination of pre-existing cultural texts (songs, literature, paintings, etc.) to create something new.
"Made from an original" is the words that stand out to me. Meaning that once a song is created first, every version after that song is a "remix". This has been the industry standard for decades. In modern times some producers feel they deserve more credit. Some producer title remixes they have created incorrectly. They will put their name first. Some will even have the nerve to put a featuring after their name and then the original artist name. They try to make it seem as if they have wrote something original for something that was an original.
Some examples would be:
- Noob Producer featuring Nelly - Song Title
- Noob Producer & Nelly- Song Title
- Noob Producer - ...