1.  Before filming began, Nighy worked with a vocal coach who forbade cigarettes and alcohol and told him to get plenty of rest.

2.  After the finalists were selected in October, it was the task of Payne and a vocal coach, Roger Love, to transform them into professionals.

3.  After the show ended, the two singers found themselves in Nashville working with the same vocal coach and writers on separate solo projects.

4.  Bullock was born in Virginia, the daughter of a German opera singer and an operatic vocal coach.

5.  Despite that, Hathaway was nervous and rehearsed with a vocal coach for two weeks before formal rehearsals began with the full cast.

6.  Eight years later, he moved to New York City, where he became a band leader and vocal coach.

7.  He hired a vocal coach, an acting teacher and began attending acting classes in Los Angeles.

8.  He studied classical piano and trained with a vocal coach.

9.  He works as a vocal coach at the Graz Music Academy.

10.  Hunt has worked with a vocal coach to learn to control her accent when needed since it tends to be more pronounced when she is excited.