Actually 0 stars.
I couldnt stop laughing for the first half hour of the movie - not for the jokes but because of how awful it is.
My friend had to stop me from leaving the cinema near the end because I couldn't stand to listen to another one of their terrible songs.
I've watched the entire thing, trying to take in everything I saw on the screen and I couldn't tell you the plot if I even tried.
You could cut out 90% of the songs and characters and replace them with actual story and maybe it would get at least 1 star from me.
This isn't even so bad it's good. When you get an hour in, you'd want to gouge your eyes out.
Don't listen to the 5 star reviews. Bloody furries the lot of them.