I found this video on youtube and I think it is like a tribute to Emon.
http://www.youtube.com/watch?v=GGTinWsOzwA
Also, here is his audition and theatre round videos combined showing that he always was a great singer.
http://www.youtube.com/watch?v=EHaO3utp_Sw
I wanted to post his best performances, but had a hard time deciding which were his best as there are so many of them. This one is special as this is the first complete song he sang on the II stage.
http://www.youtube.com/watch?v=J9T8S8_9sBg
Good luck to the rockstar of II- Emon Chatterjee👏