Well when the original is shit, it's not unusual for a cover to make it better
lol the mars volta doing back up against the wall
YouTube - Alanis Morissette - King Of Pain
This shit is awesome idc what you say about Alanis.
I like Metallica's cover of Whiskey In The Jar.
DJ Sammy/Loona's covers of Boys of Summer(Don Henley) and California Dreamin'(The Mamas and The Papas) are also nicely done, if you are in to dance music.
The Number 12 Looks Like You - "My Sharona" (The Knack Cover)
The Devil Wears Prada - "Still Fly" (Big Tymes Cover)
Richard Cheese doing "Me So Horny" is the greatest thing I have ever heard.
More seriously Johhny Cash doing Hurt is easily one of my favorite covers, as is Atari's Boys of Summer.
word love that one
a couple:
Anathema covering Bad Religion's "Better Off Dead" (Turning a punk song into that is pretty damn impressive)
Nirvana covering Leadbelly's "Where Did You Sleep Last Night" (Aswell as every other cover during their unplugged set)
Mr. Rosso Covers Alice Cooper(I love Jason Segel)
YouTube - One Man AC/DC Cover Band
One man cover of AC/DC. Back in black
YouTube - Hey Ya Cover
Mattle Weddle revamping Hey yea by outkast, this song is fucking the best.
YouTube - Umbrella-Scott Simon
Same concept as the Mattle weddle only for Umbrella.
Most of the stuff I would post has been already, so:
Jeff Buckley - Hallelujah
YouTube - Jeff Buckley - Hallelujah
Foo Fighters - Baker Street
YouTube - Foo Fighters Baker Street
And as much as I like ATD-I, I didn't really like their cover of Take Up Thy Stethoscope And Walk. Didn't care much for the original either though.
Johnny Cash doing Hurt is right up there.
Bush covering Wild Horses is one of my favorites, and Apocalyptica covering Nothing Else Matters is good too for some softer covers.
And for my favorite band ever, Garbage covered The Jam's "Butterfly Collector", which was released as a B-side I think during the Version 2.0 days. Such a creepy song and noone can do it better than Shirley.