Oh, right, you're not from Texas. Crazy guy in Austin, in and out of mental hospitals like Roky Erikson, good friend of the Butthole Surfers et al., longtime purveyor of homemade tapes of sinister little wacky songs like "Don't Play Cards With Satan" and many about Casper, the Friendly Ghost. He got his moment of national attention when he somehow got tagged for "Unpack Your Adjectives" on the Schoolhouse Rock Rocks! album.
Who's Daniel Johnston? WHO'S DANIEL JOHNSTON?!?!?!