Col ... finally got a chance to view the video ... really nice job ... your vocals and mic/efx settings have come a long way ...
I almost always stand for a 1 hour gig, and if I were to do 'karaoke' I think I would stand at least during the up tempo tunes ... gives a different look ... also, if you are going to sing with backing tracks, why not use a wireless mic and 'get into the audience' ? ... just a thought ...