'Sing" is brought to us by Illumination Entertainment — the animation studio that brought the "Despicable Me" series and last year's sleeper hit "The Secret Life of Pets." In many ways it's "La-La Land" with animals. In a color-filled, LA-like town inhabited by non-Homo sapiens in human clothing, a koala bear entrepreneur named Buster Moon (voiced by Matthew McConaughey) gets a bright idea on how to restore his failing theater: hold a singing contest and invite all the talented locals. To drum up interest, he offers a cash prize and a chance for the winner to become a professional.