I disagree. Britney had pretty much the entire BOMT era in the 90s and X had the number one smash hits GIAB and WAGW and ha number one album Christina Aguilera
Britney had one #1 album during the 90s vs four #1 albums during the 00s
Britney had one #1 album during the 90s vs four #1 albums during the 00s
ok...? not sure what that has to do with calling them 90s artists. They debuted in the 90s and had much success in the 90s so I see nothing wrong with associating them with that decade is all I'm saying.