The scarecrow from Old Mac Donald’s farm emcees a barnyard theater production that collapses into hilarious chaos in this rollicking rendition of “The House That Jack Built.”   It’s showtime on Old Mac Donald’s Farm! The barnyard animals are putting on a play—a farm version of "The House That Jack Built"— but other animals keep taking the stage and interrupting the production. First some rambunctious monkeys, then breakdancing kangaroos . . . there’s even a pair of singing elephants. Everyone knows that monkeys, kangaroos, and elephants do NOT belong on a farm . . . so what to do?   Bursting with sound effects and rollicking repetition that will have kids clamoring for repeat readings, this hilarious mashup of two favorite nursery rhymes shows that perseverance and teamwork pay off, and that sometimes you just have to roll with the unexpected and try to have fun with it.