Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What's happened to Britney?

I have all 3 of her previous albums and I have always enjoyed having a bit of a boogie to her songs but I'm sorry this new album is completely lacking! It actually began to really bug me! I didn't enjoy listening to it at all and all I could think was thank **** I didn't actually buy this!If you are looking for something similar to what you've heard from Britney before DO NOT BUY THIS ALBUM!!Her sound has completely gone down hill!not good!