Buster Moon is an elegant koala who runs a large, once illustrious, but now decaying theater. Buster is an eternal optimist, a little grumpy, who loves his precious theater beyond anything and would do anything to save it. Then he finds a golden opportunity to restore his reputation while avoiding the destruction of all his dreams and ambitions: a world singing competition. Five candidates are selected for this challenge: a mouse as seductive as dishonest, a shy young elephant devoured by stage fright, a sow mother overwhelmed by her 25 kids, and a punk pig who struggles to get rid of her boyfriend with an oversized ego to make a solo career. All of these people come to Buster’s stage to find the opportunity that will change their lives forever.