While shooting for Saturday's episode, John showed up at the sets with 104-degree fever and had requested that the shoot be wrapped up early as he was unwell. With most of the episode having been shot, the team informed him that he could leave if he wanted to.
But he insisted on staying through the entire shoot as it would be unfair to the remaining contestants if he left midway.
During his previous appearance with A.R. Rahman, John had to leave early due to prior commitments and was unable to hear all the contestants. This time, he didn't want it to be repeated.