Hardest album for me to get was Radiohead’s Kid A. But you have to understand that the world was waiting for them to save rock and roll from the likes of N’Sync and Brittney Spears at the time, and then Radiohead turned around and released….that. But I eventually came to realize that this was the most rock and rollish move they could have made, in spirit if not sonically, and I came to appreciate that album in time.