Joni Mitchell has one of those voices that grows more poignant with the years. Her performance of "Both Sides Now" on the album of the same name is probably the most haunting and beautiful performance of a 60's anthem that I've ever heard. Both sides is a great album, but her finest, in my opinion, is "Travelogue."
Radiohead - Jigsaw Falling Into Place; They took bike helmets, mounted cameras to 2 foot poles, and affixed them to the helmet top. They wore them as they were recording the song for the album and got this video..... One of my favorite songs, especially if I'm in an amazing mood or en route to a party!