In Flames - Land of Confusion (originally by Genesis)
Ozzy Osbourne - Stayin Alive (Beegees)
Children of Bodom - Hit me baby one more time (Britney Spears)
Biffy Clyro - Umbrella (Rhianna)
William Shatner - Common People (Pulp)

Spare Snare - Say My Name (Destiny's Child)
Sonic Youth - Into The Groove (Madonna)
Bridewell Taxis - Don't Fear The Reaper (Blue Oyster Cult)
Bollock Brothers - Harley David Son Of A Bitch (Serge Gainsbourg)
William Shatner - Lucy In THe Sky With Diamonds (The Beatles)

Placebo - Runnin Up That Hill
Scissor Sisters - Comfortably Numb
Alien Ant Mob - Smooth Criminal


Thats all I can think of

Uncle Tupelo - 'I Wanna Be Your Dog' (countrifying The Stooges)
Seaweed - 'Go Your Own Way' (originally by Fleetwood Mac)
The Afghan Whigs - 'Come See About Me' (originally by The Supremes)
Camper Van Beethoven - 'Pictures of Matchstick Men' (originally by Status Quo)
William Shatner - 'Common People' (originally by Pulp)

Edited to add I didn't realise the original post already had 'Common People' so i'll substitute in the Dead Kennedy's version of Viva las Vegas.

The Fall - Lost In Music
William Shatner - Mr Tambourine Man
Frank Sidebottom - Panic
The Slits - Heard It Through The Grapevine
The Residents - Satisfaction

Gipsy Kings - Hotel California
Vic Reeves - Born Free
Richard Cheese And Lounge Against The Machine - Gin And Juice
Sid Vicious - My Way
The Sensational Alex Harvey Band - Delilah

Sun Kil Moon's Tiny Cities album, all covers from Modest Mouse turning most of the songs into complete different versions of the songs. http://www.youtube.com/watch?v=zV3noldab34

My Bloody Valentine's cover of We Have All The Time In The World by Louis Armstrong.
Sonic Youth's take on Superstar by The Carpenters.

There's 2 greats off the top off my head.

1. The Nolans - Panic (The Smiths)

2. Elvis Costello - Knowing Me, Knowing You (Abba)

3. Tori Amos - Smells Like Teen Spirit (Nirvana)

4. Elbow- Independent Woman (Destiny's Child)

5. Richard Thompson - Oops, I Did It Again (Britney Spears)

The one that immediately springs to mind is

Teenage Fanclub - Like a Virgin

Jose does Kylie

Arctic Monkeys - Love Machine (Girls Aloud)
Johnny Cash - Hurt (nine inch nails)
Steven Lindsay - Monkey Gone to Heaven (Pixies)
Spiritualized - Oh Happy Days (Gospel??)

erm

The Loved Ones - Time after time (Cyndi Lauper) Where's my cd

the last one is a subtle hint

Here is the winner

The moog cookbook

Type O Negative - Paint it Black

Metallica - Whiskey In The Jar (Thin Lizzy)
Turbo B - I've Got The Power (Snap)
Korn - Word Up (Cameo)
A.Human - Horse With No Name (America)

Can't get onto You Tube on work's computer but A.Human is an awesome cover!

Pick any 5 covers by the superb Leningrad Cowboys.

They even managed to make a ZZ Top song good, and worked a bit of the Russian anthem and a chorus of 'Alelujah' into it.

http://www.youtube.com/watch?v=DSYpYoTEKV8

Have to return to this thread as I've just found a cover band called Ten Masked Men, this is superb.

Far superior to Britney Spears: http://www.youtube.com/watch?v=gbr38RQSBuM...feature=related

Its not a Thin Lizzy Song. But I agree that Metallicas version is great.

I just saw them play it live a few days ago in Dublin

By far away the most strange cover is:

The Wedding Present - It's Not Unusual (Tom Jones). Bizzar(o)e but ace!!

The Dan Band - Total Eclipse of the Heart

Another from The Shatner's vast back catalogue

Rocket Man

China Drum - Wuthering Heights
Snuff - Whatever Happened To The Likely Lads
Cap n Jazz - Take On Me
Therapy? - Diane
Malcolm Middleton - Stay