Like a rough, more obscure counterpart to Syd Barrett, Skip Spence was one of the late '60s' most colorful acid casualties. The original Jefferson Airplane drummer (although he was a guitarist who had never played drums before joining the group), Spence left after their first album to join Moby Grape. Like every member of that legendary band, he was a strong presence on their first album, playing guitar, singing, and writing "Omaha." The group ran into rough times in 1968, and Spence had the roughest, flipping out and (according to varying accounts) running amok in a record studio with a fire axe; he ended up being committed to New York's Bellevue Hospital.