She has played with the king of pop Mickael Jackson, and I think if my memory is good, that she was a teacher at the GIT in LA...
As to how she does her 8 finger tapping, she has a special aplliance that she calls a string "dampener" which prevents strings from sounding as she plays the guitar like a piano, or as a four handed van halen... You should check out some stanley jordan for a cool ride... He plays two guitars at once!!