I stumbled upon this very cool project that’s a mash-up between a song file and pictures from Flickr. The idea is simple and captivating: as the song is played, pictures from Flickr are flashed according to the words/lyrics based on their tags. So you get a nice music in the background, while enjoying (somewhat?) relevant but random images. The interface is pretty cool too ~ you can drag them around just like a pile of real photos.
Try it out – it’s a little heavy though (~3MB).