Acoustic versions of songs

[Shorty]

When I think of my favorite acoustic version of a song, the first thing that comes to mind is Everlong by Foo Fighters.

I like hearing alternate versions of songs that are loud and/or fast or involve a lot of different instruments and seeing how they work in a (often times) slower melody with a single instrument. I dislike when the song is changed for the sake of an acoustic version. (example, Placebo - Every You and Every Me)

Some other favorites~

Alkaline Trio - Every Thug Needs a Lady - My favorite Alkaline Trio acoustic version of any song.
Alkaline Trio - Emma - A perfect example of how Matt and Dan's harmony works so well together.
Alkaline Trio - Private Eye - "this song's for Dexter"
Brand New - The Quiet Things That No One Ever Knows - aaaah I melted when I first heard this
Metric - Help, I'm Alive - completely haunting.
Panic! At the Disco - Lying - I love acoustic Panic! songs because they show just how amazing Brendon Urie's natural voice is.
Panic! At the Disco - I Write Sins Not Tragedies
Panic! At the Disco - Nine in the Afternoon
Shiny Toy Guns - You Are The One - The whistling freaked me out at first, but they came through.
Yeah Yeah Yeahs - Maps - A regular fixture for my acoustic playlists.

[Loony BoB]

YouTube 'em yourself, this is from my playlist. Anyway, I have lovely acoustic versions of these songs...

Bon Jovi - Livin' On A Prayer
Colin Hay - Overkill
the goo goo dolls - Iris
Tina Arena - Burn
Bryan Adams - I'll Always Be Right There
Bryan Adams - When You Love Someone (this happens to be the song Danielle & I chose as our first dance)

I probably have more but can't be arsed figuring out which are acoustic and which aren't. These were kindly labelled as acoustic or from Bryan Adams' MTV Unplugged album.

[Slothy]

Recording quality isn't the best and it's not what you'd typically think when you think acoustic version of a song, but I've always been fond of this piano version of Tool's Lateralus: Lateralus - Tool piano cover - YouTube

Never ceases to amaze me that that guy did such an excellent job reworking a song like that for piano alone. I'll have to track down some other acoustic songs I like though.

[Inferno]

Thrice - Beggars
obviously

[Rantz]

I love all links from the first post. <3

Company of Thieves have some great acoustic versions of their songs. This was the video that got me into them, despite its bad quality: Company of Thieves - Oscar Wilde (Acoustic) - YouTube

I'll add more later

Edit:
Acoustic covers rather than acoustic versions by the original artist:

Bon Iver - I Can't Make You Love Me / Nick of Time - YouTube
James Blake - A Case Of You (Joni Mitchell cover) - YouTube
Ozark - Black Hole Sun - beautiful piano version - YouTube

Cash's version of Hurt goes without mention, but I'm mentioning it anyway.

[noxious.sunshine]

I lurve this.

[Jessweeee♪]

Make Yourself (Acoustic) - YouTube

[Freya]

Foster the People "Pumped Up Kicks" ACOUSTIC - YouTube

and then I just love anything nate ruess sings so

Fun.: Carry On (ACOUSTIC) - YouTube

[Rantz]

Fun does have a lot of good acoustic songs.

Fun.: Why Am I The One (ACOUSTIC) - YouTube

[Jinx]

There's only one acceptable acoustic song ever: Hotel California.

[Lonely Paper Star]

Eyes On Me (Acoustic Guitar Version) | from the Potion 2: Relaxin' with Final Fantasy album





Love Foolosophy (Mondo Grosso Love Acoustic Mix) | Jamiroquai




I also love piano versions of things, which I'm too lazy to list.