Professional singers usually undergo voice training, provided by a voice teacher or coach.

We hear and see that the singer undergoes his response to these images anew as he sings the songs.

During Info Night, Prospective singers underwent a simple audition process.

The singer underwent corrective vocal surgery in November 2011 and cancelled all public appearances until February 2012.

The same day the singer is undergoing tests at the typing to be entered in the register of bone marrow donors.

The singer was still unconscious a week after the attack and was fed intravenously, and underwent several operations.

The singer underwent open-heart surgery last year, and retired from singing in September after suffering a stroke.

The singer had been undergoing treatment for lung infection for over a year and had not recorded for films during the period.

The singers will then undergo a live audition, where they will be assessed by the panel.

The singer also suffered from other ailments and underwent surgery for cancer in 1993.