Surferbee made a good point about Jan's voice. I'd like to add another thing that Jan doesn't get enough credit for. His compositions. People are starting to learn that he was a great arranger and producer. That's what made Jan & Dean records great! But what about the songs he wrote. It seems that because he shared writing credits with the great Brian Wilson( I say that with respect, Brian is great), people assume that Brian wrote that stuff. Why would Brian need help? Well, when it comes to Jan & Dean records, I really believe that Brian was just a friend that made suggestions and enjoyed working with Jan. There's no doubt that Jan wrote his share of those songs. The proof is that Jan wrote so many songs without Brian. People don't realize that Jan(without Brian) wrote songs that were Billboard Hot 100 hits for 7 different artists between 1958-1964. Jan & Arnie, Jan & Dean, Billy Ward, the Angels, the Rip Chords, Ronnie and Daytonas, and Johnny Crawford. Also, the Beach Boys covered a Jan Berry composition on their Number 1 Concert Album. So not only was he a good singer, arranger and producer. But Jan knew how to write a great song!!