THE SIMPSONS ACAPELLA STYLE by Canvas. Accurate and funny.
MANN GEGEN MANN by Ramnstein. Don't watch if you're a homophobe or can't take mass amounts of men.
I"M ALIVE by Becca because it's uplifting and it ends the anime of Kuroshitsuji.
HYPNOTIZE by System of a Down. Headbanging love.
19-2000 by Gorillaz. Isn't Noodle adorable? Love the nonsense lyrics
IN NO TIME by Estranged. Love this vid it's local.
GET IT UP by Mindless Self Indulgence. Just the music no vid.
EDIT
THE CAT PIANO is all kinds of awesome. Cat town reminds me of Cat City. :D Kuching.
The Cat Piano from PRA on Vimeo.
Will update with other vids.