I'm at work so can't embed the vid but do a youtube for Sandie doing Sympathy For The Devil. It's one of my favourite cover versions ever, but I'm not sure it's for the right reasons.

... and yes, this is excellent.

So good I'll resist the urge to post her version of Burlington Bertie from Bow...

You could fill a whole thread with excellent covers by the Foo Fighters. I'm not sure how obscure their cover of Band On The Run is, but here it is anyways.

I can't seem to find this on youtube anymore but the onion AV club recorded the mormontastic Low doing a great version of Africa by Toto.

I've never liked Joni Mitchell's voice, which sounds like someone from the WI singing Jerusalem. Frank's version of her song is better.

Mike Flowers Pops -Velvet Underground Medley

...but I still love the Ben Folds cover of "Bitches Ain't Shit" by Dr. Dre. He somehow manages to make it sad. I don't know how.

NSFW audio, obviously.

They include links to other covers sites as well.

http://www.covermesongs.com/

http://coverfreak.com/

http://coverlaydown.com/

Azealia Banks covering a fabulous Interpol song fabulously.

So many to choose from but this is sublime -
'In a manner of speaking'

Waits covering "The Return of Jackie And Judy" by the Ramones

Radiohead do Carly Simon's Bond theme

Bjork covers Joni Mitchell's "The Boho Dance"

Do splendid versions of Me & Julio down by the school yard and Gary Numan's Cars. Not sure if they are on Youtube as I'm not able to access that here. Look forward to listening to these suggestions when I get the chance later.

Tubular Bells by the Brooklyn Organ Synth Orchestra

Always been quite partial to this. Thirty years later I decided to look up the original, it's a belter.

Which someone here recommended (sorry, I can't remember who) and it's an always entertaining podcast.

http://coverville.com/

... covering Rod Stewart covering Robert Palmer covering The Persuaders

They also do Blitzkrieg Bop and Killing in the Name of

Also worth seeking out Merry's versions of the entire Gimme Shelter, The Acid Queen and Rainy Day Women.

Here's Paul Heaton of the Beautiful South singing a very wonderful Bill Withers song, You Just Can't Smile It Away, on Later.

Clive Gregson is a good writer/singer/guitarist but I think his best skill is as an interpretor. Listen to this great arrangement.

I hope you like it too. It is a cover of Lykke Li "I Follow Rivers" by Triggerfinger, the self-styled loudest band in Antwerp, but it is not loud at all.

The Belgian radio station has had it taken it down from Youtube, you have to find it elsewhere. And they wonder why nobody likes them. It is still out there though.

http://www.tumblr.com/tagged/vara

From the amazing Cassandra Wilson:

Across The Universe: never tire of this, and it has a memorable video too. My memory is playing tricks on me though. I don't remember it being in black-and-white, but I can't find a colour version.

Real nice version...not usually my bag but good is good..Eva Cassidy..I believe she passed away some years back.