Euphoria's graphic is very interesting.
However, in terms of the music industry, I think Alizée would be part of another different category to those three.
I would call it the
"one hit wonder" category, for people that fit in similar charachteristics to Alizée's.
People who had a big success with a certain song, and may keep in the music business and recording albums years later, but breaking even or with small profits regarding album sales.
I suppose it would be all about royalties in that category. And probably it would be necessary to divide it in two sections. One for big hits like
"Lolita",
"Barbie girl" by Aqua, or
"Butterfly" by Crazy Town, and another one for mega hits like
"La macarena" or
"All the things she said" by t.a.t.u. for example.
It is funny (or sad) that websites dedicated to this one hit wonders don't even mention or remember Lolita, probably because it is a song in french or because it did not make it in America at the time.
http://www.onehitwondercentral.com/00s.cfm
http://www.onehitwondercenter.com/00s/00s3.htm