Disney recently announced the voices for its animated movie this year. They are mostly comedians I don't know about, from TV shows I don't know about.
Not to be a jerk, but I don't think I've ever been excited to find out that a particular celebrity is doing a voice for a children's movie. I suspect the target audience of five-year-olds doesn't care much, either. People make the argument that "parents who want to take their little kids to movies appreciate having celebrities do voices", but that seems like an invalid argument. If you are a parent who wants to take your little kid to the movies, the animated movie is more or less your only option, no matter who's doing the voices.
I dunno. There are some celebrities who are legitimately good at non-visual acting, but most don't seem to take it seriously. I've definitely seen movies where it feels like the majority of the dialogue was recorded on the first take. As in, the table read first take. With that sort of quality, I hope the studios are paying the celebrity voice actors by the hour, not by the movie!