This is a long shot, but I gotta ask. Several years ago, I was in some punk rock music shop in Shinjuku or Koenji. I found a song on a CD, by a band whose name I cannot remember. The song title was, "Don't worry Keiko, mommy's just looking for her hand in the sand" Broke me up, and I was a knucklehead not to buy it, just for that song title. It was some Japanese band, as I recall. Memory is that hazy about everything except for that song.
I Googled, Yahooed, and yelled out the window, but nothing. To this day, I avoid knowing any girl named "Keiko" for fear of dismembering her.