The Mormons are coming! The Mormons are coming! No, not the one running for president (although he's showing up pretty often). It's the award-winning irreverent musical The Book of Mormon, which Broadway Across America announced this morning will be part of its 2013-2014 season at the Aronoff Center. The winner of nine Tony Awards (including the best musical of 2011) is a satirical look at two naive and idealistic Mormon missionaries who are sent to a remote Ugandan location where a nasty warlord is oppressing the villagers. Their clueless devotion, good-hearted but misguided — with a lot of very off-color humor — has made The Book of Mormon an unusual hit.It will come as no surprise to CityBeat readers that the guys behind this are Trey Parker and Matt Stone, the creators of animated South Park, another outrageously irreverent look at contemporary life.Avenue Q was another Broadway hit, this one featuring Sesame Street-styled puppets in very adult situations.