Instruct: Classify Amazon reviews into positive or negative sentiment
Query: GREATEST ROCK CONCERT EVER

I'm 30 years old and grew up in an age of terrible music and without any role models that exposed me to any classic rock I fell into the world of pop :..( A friend of mine showed me this movie when I was in high school and it changed my life. This is compulation of the greatest musicians of all time which alot of them are still relevent today which doesn't happen anymore. I've bought this for about a dozen of people and all have thanked me. I would give this 20 stars if I could.