In 1967 or thereabouts Van Morrison wanted to get out of his contract with a record label, so he fulfilled his obligation by making up 31 songs and recording them in a single sitting. They're awful songs, but it's interesting to listen to a few. All 31 are available as MP3s on WFMU's blog.
[Morrison sings] on topics ranging from ringworm to wanting a danish, to hating his record label and a guy named George. Make sure you get past the first few tunes - it takes him a few to get cooking.Link