Just curious, are there any other cases where multiple artists are using the same alias?
If we leave YOU as an alias on Yasui's profile, and then have a new female vocalist profile also with an alias of YOU, it could result in the same problem later on.
YOU is probably this chick from the group Fairchild
http://www.youtube.com/watch?v=tMG_sCP2k4k as Seiji Toda is playing Bass there also.