Official t-shirt from the (proper) debut full-length album of the epitome of one-man bands: Leviathan. Licensed to Musical Hall (see the sleeve).
The Tenth Sub Level of Suicide is probably my favorite album of this entity, even though I'm not into suicidal themes, the atmosphere it conveys is putrid and I like it. Used to listen to it a lot in the mid 2000's. The songs He Whom Shadows Move Towards, Mine Molten Armor and The Idiot Sun are my favorites.
"When you kill yourself... come visit me. Many spirits gather here." - The lovely phrase in the back.