hasa diga eebowai... ♪ hasa diga eebowai hasa diga eebowai... >> kroft: what the mormons don't know,t, is that the locals are flipping the finger at their heavenly father. >> f.u. to heavenly father? holy moly, i said it, like, 13 times! >> kroft: it is rude, crude, lewd, and blasphemous. but it hasn't kept critics from proclaiming "the book of mormon" the best broadway musical in a decade, or stop it from racking up nine tony awards. and for theater-going fans of trey parker and matt stone, it's exactly what they wanted and expected from the creators of "south park." >> matt stone: a lot of the stuff, the subject matter we've tackled, the way we found ourselves there is simply by trying to do something that no one else has touched. and so, it's like, "there's a reason why people haven't touched that." and we're like, "oh, really? because we want to do jokes other people haven't done, you know." >> kroft: are there lines that you won't cross? >> stone: no. i don't... yeah, we haven't found one yet. >> kroft: they are barely 40, and have already been collaborating for 20 years. they m