Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: The most underrated McCartney album of all!

This album is full of energy and beautiful melodies. "Tomorrow" especially is a gem of a song that has been totally overlooked by fans and critics alike. The power of "Mumbo" with its terrific bass line shows Paul at his finest. "Dear Friend", "I Am Your Singer" and others showcase the finest voice in all of Rock BAR NONE!!!!!