Charlie's Song

[jimmy12345]

Right, to explain this i have to refer to a couple of spoilers. As i want this to be read by more people i want it in general discussion. Ill warn you here though, one of the spoilers i'm going to refer to is the big spoiler about the finale so you've been warned, read on only if you know that spoiler.
So, point one it's said that Charlie, while being tortured by Greta and Bonnie, writes a song that will play a part again. so heres the main bit, what if, the song that he writes plays a part or is heard in Jack's flash-forward in the finale? or it is even Charlie's funeral he attends. Could it be that it's on the already released 'Greatest Hits' album and it's just coincidence or something more or maybe something else happens that allows Charlie, (who were are to assume dies, according to jvince,) to get his song heard. I just thought it'd be weird.