Illumination Entertainment, the team behind the Minions, branch out into the world of all talking, dancing, singing creatures great and small, mashing that up with the wildly popular phenomenon of singing competition reality shows. The result, “Sing,” is an amusing riff on genres, a “Zootopia Idol,” if you will, and it comes as a surprise that someone hadn’t thought of this combination already.

But while the film takes its introductory cues from shows like “American Idol,” “The Voice” and “X Factor,” with an all-too-brief audition montage that is jam-packed with truly wonderful moments (a water buffalo crooning Crazy Town’s “Butterfly”? Twerking bunnies? All that and more), it transforms into an old school backstage musical that celebrates the magic of putting on a show.

Matthew McConaughey voices shyster theater owner Buster Moon, a koala with a passion for the art of the stage and some seriously overdue bills on the mortgage for his beloved Moon Theater. He’s a scrappy, lovable, ever-optimistic guy — and eternal salesman — who believes that when you hit rock bottom, the only way to go is up. His buddy Eddie (John C. Reilly), a slacker rich kid llama, is a soft touch, but even he is done investing his parents’ money in Buster’s misguided productions.

Buster lands on the idea of putting on a singing competition, and soon fliers are picked up by every aspiring vocalist in town, lured by the promise of a $100,000 prize (which Buster doesn’t have). But Buster is thrilled by the crop of talent he turns up, including mother of 25 piglets Rosita (Reese Witherspoon), who belts Katy Perry with the best; mouthy mouse Mike (Seth MacFarlane), styled straight out of the Rat Pack; porcupine rocker chick Ash (Scarlett Johansson); British gorilla crooner Johnny (Taron Egerton); and German techno-rave pig Gunter (Nick Kroll).

Each singer has his or her own personal story and obstacles to overcome, and so the plot feels overly busy, frantic even, as we zip all over town, checking in on Rosita’s struggle to balance raising her kids and following her dreams, Ash’s relationship problems, Johnny’s desire to break free of his father’s robbery gang, etc., etc., on and on. There’s even the story of painfully shy elephant Meena (Tori Kelly), who’s helping out the show until she can muster up the courage to show off her remarkable pipes. It’s a lot to take in, but writer/director Garth Jennings keeps it all on the surface.

The soundtrack is full of well-known crowd-pleasers, deep cuts and a truly catchy original song, the pop-rock number “Set it All Free” sung by Johansson as Ash. The combination of pop music and cuddly animals will prove to be an addictive combination for children and adults alike — kids were up and dancing in the theater as the credits rolled. It’s a cute movie with genuinely funny moments (keep an eye out for the koala car wash), and some great tunes to boot.

MOVIE REVIEW

“Sing”

Grade: C+

Starring Matthew McConaughey, Reese Witherspoon and Taron Egerton. Directed by Garth Jennings.

Rated PG for some rude humor and mild peril. Check listings for theaters. 1 hour, 48 minutes.

Bottom line: Great tunes and genuinely funny moments make this film catchy