Board Thread:Articles Discussion/@comment-177.192.149.222-20121222212834/@comment-1739368-20130112041757

Well the names after アジア arn't exactly alternate spellings, rather theyre pronounciation, right? Pronounciations are usually not the way you'd spell a word, just shows how to pronounce it. That's typical of most wiki pages, such as Asia (i/ˈeɪʒə/ or /ˈeɪʃə/).

The kanji  彩 for the band Aja also doesn't exactly translate to Aja either, the Kanji goes something Irodori in romaji, so I think Araki probably used the katakana version to make it pretty clear he meant the band.

Just a thought, though.