That is almost impossible. You would recognize at least Even flow/Jeremy/Alive/Do The Evolution. It played everywhere. You might not think "Oh that's Pearl Jam" right away, but you would know those songs. I will agree with Sofa that Vedder isn't that great of a singer. At least compared to others in his genre. You got Mark Lanegan/Cornell/Staley/Cantrell/Andrew Wood/Cobain are all better IMO. There's others I might rank higher maybe, but you get the idea. Pearl Jam is just really good at what they do though. They're the Bruce Springsteen of Grunge. What's your problem. Jerry Cantrell is lead vocals on like two songs. Why do you people hate Eddie vedders voice so much. Kurt Cobain sucks. Nothing. I actually love Pearl Jam, but I'm also honest about Vedder's voice. He's great at what he does and all, but it's not like he got the range as some of the other vocalist I mentioned. So if Cantrell is co-vocalist, but not leading for most of the songs, he can't be better? Say what you want on Cobain, but a lot of people will disagree with you on that one. And now back to Lester...