Sorority of the Spectacle and The Male Gayz are both stupendously, stupendously good
I don't know if I can come up with anything on that level but I thought I'd have a go
We Will Scatter Shatner – cover band that playing Flipper in the style of Shatner, or vice versa
Erdoganja – conceptual doom metal with all lyrics in Turkish, actual musicians to be Japanese (i.e. Corrupted) or, possibly, Finnish
Oh No You Thucydidn’t! – conceptual queercore about the Peloponnesian War
Degenerative Grammar - post-Chomskyan deconstructed no wave