Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: What happened!?

Don't get me wrong, I am a fan of Avril. But I heard 'Girlfriend' and I knew that something had gone terribly wrong. I loved 'Let Go' and 'Under My Skin.' It's hard to believe that these are all by the same artist. Complete trash. I hope she'll go back to her old 'style' in the next album. Her career will be a dead end if she continues to release 'music' like this. I don't know why most artists completely change their music by the third album. If you're having so much success with your style as it is, why would you change it? I want my money back.