I played some of the Harriet songs and did not find any echos of Karen. In my opinion, of course. To me she has like a Britney Spears kinda tone on her voice. Apologies if that sounds funny but I don't have the musical knowledge on how else to describe a singer. Akiko Kobayashi sounds very alike in "How could I ask for more". Not Karen, but makes you wonder how suited that song was for her had she recorded it.