Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What Happened to Josh Groban?

I just played my "Live at the Greek" DVD yesteday and I couldn't believe how poor his voice was! I also had guests over and they commented on how his voice was nasal in some songs and just poor in one other. It was so disappointing that I took it out and played the first concert DVD. Very noticable indeed! With the first concert we heard the beautiful tones of Josh Groban's voice and everything he sang. I believe this is only the span of two years between concerts. Lucky for me I bought it at Sam's and can get a refund. This one is going back to the store.