who is the voice of the mouse in the movie sing
When the koala Buster Moon (voiced by Matthew McConaughey) decides to put on a talent show, singers flock to audition, including Seth MacFarlane's abrasive mouse Mike, Reese Witherspoon's pig mom Rosita, Taron Egerton's teenage gorilla, Scarlett Johansson's porcupine Ash and Tori Kelly's painfully shy elephant Meena.