As a vocal coach Esther Hart worked for, and particpated in, several tv shows such as “Popstars the Rivals” the “Jr. Songfestival” and “Who becomes tarzan?” Also she was the vocal coach for several famous Dutch pop singers such as Marco Borsato, Edwin Evers and Nielson.  Currently, she teaches at the conservatory for art and pop music in Enschede.  Esther Hart also gives singing lessons for private individuals in Rotterdam.