A Fifth of Beethoven - Walter Murphy takes it from classical to disco;
I Will Always Love You goes from country to pop ballad between Dolly Parton & Whitney Houston;
The Greatest Love of All went from jazz to pop ballad between George Benson & Whitney;
American Pie switches from folk to pop between Don McLean & Madonna - eurgh!

Let's agree to agree about Donna Summer and agree to disagree about Richard Harris. I love his version.

lol.. fair play!

...Elton John's Your Song goes from amazing to cr@p when Ellie Goulding gets her hands on it!

Bit in bold: Came on this thread specifically to mention that abomination of a cover. Then again, I've always thought Wonderwall was an overrated track anyway.

Chris Cornell - Billy Jean - rock version (Michael Jackson)
Sid Vicious - My Way (Frank Sinatra)
Snow Patrol - Crazy Right Now (Beyonce)
Travis - Hit Me Baby One More time (Britney)
Lemonheads - Mrs Robinson (Simon and Garfunkel)
Rolf Harris - Stairway to Heaven (Led Zeppelin)

Umbrella - Baseballs

The Rihanna song performed in the style of fifties rock 'n' roll. Hate the original, absolutely love this cover.

That is a very clever cover

Wind Beneath My Wings by Sonata Arctica is a heavy metal version of Bette Midlers classic.

Pretty sure I've heard Keane's Bedshaped translated into Italian and sung opera styley!
SOS Band's Just be Good to Me 'dubstepped' by Beats International;
Red Red Wine 'reggaefied' by UB40.

Sia - Gimme more

Corinne bailey rae - sexy back

the original Torn by Ednaswap is miles different from the Natalie Imbruglia version

Almost true except Manson's version of Tainted Love was more mainstream than dark tbh. Also his friend Tarrie B and her metal band called My Ruindid a cover which is much better.

DEVO - 'Satisfaction'. So far removed from The stones it is good
Tori Amos does 'Smells like Teen spirit'. One of Nirvana's worst songs and hated by cobain. I like Tori Amos. She is a musician. Up there with Kate Bush. However don't try to cover songs that are not worth covering.

... and in 73 jonathon king in one of his many guises also covered '(i cant get no) satisfaction' .... needless to say it failed to chart!

Here is a new cover of sexy & I know it - turned into a beautiful ballad by a stunning female vocalist.

https://www.youtube.com/watch?v=l5QO5I77HrE

Girls Aloud - Teenage Dirtbag

Cuban Jazz Combo turned Got To Be Real by Cheryl Lynn into something totally different but still keeping it as a dance floor filler

Little Roy has done reggae versions of Nirvanas catalog
Come as you are
https://www.youtube.com/watch?v=I1aEo4SkOWg
Dive
https://youtu.be/7HNP94fsfLo

John Coltrane transformed "My Favourite Things" (from the "The Sound Of Music") into a Jazz classic.

The R&B and hip-hop group Big Brovas also transformed the song, but unlike Coltrane, not in a good way.

Pink Floyd / Scissor Sisters - Comfortably Numb. Both brilliant imho.

Divine did some bizarre rendition of Walk Like a Man.

Kate Bush does an excellent reggae version of Elton John's Rocket Man

https://m.youtube.com/watch?v=rYSCHKmvcIY

And China Drum do an excellent punk version of Kate Bush's Wuthering Heights

https://m.youtube.com/watch?v=OBviQXfuu3c

Patti Smith's sublime bluegrass take on Smells Like Teen Spirit

https://m.youtube.com/watch?v=m2tv1ShcVmQ

Shakin' Stevens changed "This Ol' House", a fifties song that wasn't rock 'n' roll into an updated eighties version of fifties rock 'n' roll.

"Louie Louie" started life as a Doo-wop song in the fifties when originally recorded by Richard Berry. A Garage Rock cover by the Kingsmen was a massive American hit in the sixties, while in the seventies Toots and the Maytals recorded a tremendous Reggae version and Motorhead gave it the Heavy Metal treatment.