Veteran music composer Pyarelal Ramprasad Sharma, who is behind a number of films like 'Dosti', 'Milan', 'Shagird', 'Do Raaste', 'Dostana', 'Karz' and others along with late musician Laxmikant Shantaram Patil Kudalkar, is set to grace the latest episode of singing reality show 'Indian Idol 13'. He will be accompanied by his wife, Sunila Pyarelal Sharma as celebrity guests.