Aw shit, I did it again....
Music is "Anvil Snare Remix" from the Toonami Deep Bass album.
Artist is Joe Boyd
Hellsing, and Hellsing Ultimate are owned by Funimation Entertainment, Geneon, Madman Entertainment, ADV Films, FUJI Films, and Kouta Hirano.  Please support the official release.
Hellsing Ultimate: Abridged was created by Team Four Star.  Support the non profit fan-based parody.