Okay, my brother has a dvd of Mr. Wooten stuff. I believe it is something like "Victor Wooten at Bassday 99ish". I forget what year it was though. Anyway, he plays with his brother Reggie and Oteil Burbridge in this particular video. I think it is on Norwegian Wood that he uses this effect. He seems to sing through his mike, but it's like the signal goes through his bass, because all you hear is the melody of the song, which he is playing on his bass. It seems like the instrument is being used to control the pitch of the otherwise unaltered vocal signal...? I think it may be the same thing Richie Sambora uses with Bon Jovi. Could somebody tell me what that thing is? Thanks.