It's not as if it hasn't been done well- just that the successes aren't as notable as the flawed or failed attempts.
Boy George's work on TABOO was considered much better than the show it was in. David Yazbek was an indie songwriter turned theatre darling.
AMERICAN IDIOT may have been met with mixed reviews from board members, but critically the show did fairly well. SPRING AWAKENING can hardly be called a traditional musical, but as a play with music, Duncan Sheik's songs fit well enough. The only trouble is that, as he goes on writing musicals, he can't seem to make the jump from "play with music" to "integrated musical."
Although, I will cite the counterargument I've seen in a few other threads, that most acclaimed musicals from the beginning to today have incorporated significantly more jazz and opera influence, combined with some measure of each, than rock or modern pop influence. Since these forms allow for more fluidity of expression and less reliance on conventional structures, songwriting tropes and time signature and chord conventions, they allow a greater dramatic range and can be altered to match the character and situation, while rock songs and pop songs can only be toyed with so much before they lose the genre.
Updated On: 3/5/12 at 06:17 PM