Is "generation" a global term or country specific? http://en.wikipedia.org/wiki/List_of_best-selling_music_artists http://en.wikipedia.org/wiki/List_of_best-sel

Is "generation" a global term or country specific? http://en.wikipedia.org/wiki/List_of_best-selling_music_artists http://en.wikipedia.org/wiki/List_of_best-selling_music_arti... DMB doesn't appear (Implying that they have <50 mill sales (but they have 32 mill US Sales). Linkin Park / Rihana / Coldplay all appear in the global list. Not to mention artists like Ayumi Hamasaki (Which from 1994-present) operated in roughly the same time span as DMB.