[Ayumiko]

It's different. People don't look at ayu as a band but as a solo female artist even though she has her own band members to play for her in performances and tours. Same thing as Otsuka Ai. You can't put them in the same category as dreams come true, every little thing, do as Infinity, girl next door, etc...its just different. That's just saying Namie and Koda are in a group like Exile coz they have their own dancers.

They're selling well not because they're a band...a lot of bands don't sell as well....but for other reasons...popularity, music.