As well as coaching and appearing on TV music shows, John has also worked closely with record and management companies such as, 19 Entertainment, Sony/BMG, and Polydor, in order to raise their artist's performances to new levels of excellence. Whether in a rehearsal studio, recording studio, television studio, preparation for a tour, or a classroom, John's services with the help of trusted colleagues, offer much in terms of vocal technique, stage performance, music and vocal production, song interpretation, voice care and maintenance, confidence building, constructive critique, encouragement, psychology of the singer, microphone technique, and much more.