The voice cast from the first, very successful, Sing return, and there are even some great new additions. While they aren't all professional singers, they do a fantastic job with the singing parts of the film.
The plot itself is an interesting one that actually fits into the Sing universe. It makes sense that this would be the next step for Buster and the gang. However...this is a major issue that takes away from the movie as a whole.
The final trailer for Sing 2 completely ruins the movie. It has major plot point reveals, and even includes one of the final shots of the film. Anyone who watches it will be able to figure out the majority of the film, taking away from the experience.
Great song choices and continuation of the Sing story. Kids will really love this one. However, for anyone who has seen the final trailer, the experience will be dulled, as it gives everything away.