Okay, this is strange. American rock group WEEZER has apparently covered a Boa song. The ballad MERI KURI (aka, MERRI CHRI) is supposed to appear on the Japanese version of Weezer's newest record, THE RED ALBUM.
When I went to Amazon.co.jp, I could not find the song listed on any of the versions of THE RED ALBUM, however I found a download of Meri Kuri here. (Video of Boa's Korean version is here. Japanese version is here).
The mind boggles.