Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A great gift for a Rush fanatic

If you love Rush, you will love this. But someone please answer me this: why does Jack Black have to yuck it up and ruin parts of this for me? Even my wife thought he was childish. Everyone else (the stars that were interviewed) were all very professional and humbled. Not Jack Black. He needs to stick to making kids movies.