First aid kit
love/indie/folk
They're 15 and 17, these two sisters Johanna and Klara from Sweden, but don't let their sweet looks fool you, these girls can really play and write great songs. I've just seen them live at Crossing Border festival and I dare say they were the best performance I've seen in those 3 days. Here are a few links so you can check it out yourself:

Amazing Fleet Foxes cover
"You're not coming home tonight"
"Our own pretty ways"

Just make sure you keep an eye on this ones, if you get the chance to see them live, don't hesitate.

Astronautalis

Astronautalis
rap/indie/folk
It's easy to compare Astronautalis to Modest Mouse or Cloud Cult, but at the same time his music is very different. Listen for yourself. And buy his CD.
myspace

Dragonette

Dragonette

Electropop/canadian/female vocalist
Dragonette are a part-Canadian part-British electropop music band. You might know the song "I get around" ("I say yes when my heart is saying no), it is in the Canadian Billboard top 100.
Listen to them here:
www.myspace.com/dragonetteband
www.last.fm/dragonette

Speedmarket Avenue - Way Better Now

Speedmarket Avenue
Indie/twee/swedish

Speedmarket Avenue is a young band from Stockholm.(Which should be enough reason for you to listen to them)
Listen to them here:
http://www.last.fm/music/Speedmarket+Avenue
http://www.myspace.com/speedmarketavenue

Captain Black

Captain Black

folk/indie rock

"Captain Black are a unique sounding band currently dwelling in Camden Town, London. Their folky melodies, skiffle rhythms and gospel tinged choruses come together in a set of individual and modern sounding pop songs that you will not hear the likes of in any other band around. They are currently working on their debut album due for release in 2008, which is sure to carry on splitting opinions and sparking debate but is guaranteed to gain new fans and definitely won’t go unnoticed."

You'll find them here:
http://www.last.fm/music/Captain+Black/
www.myspace.com/captainblack

Earlimart - Hymn and her

Earlimart
Indie rock/indie pop

Earlimart is a band based in Los Angeles, CA. The name comes from a town located between Los Angeles and Fresno. The vocals are shared by Ariana Murray and the male counterparts of the band. More importantly, they're on tour in the USA now, so go see them if you can.
You can listen to them here:
http://www.myspace.com/earlimart

Santogold - Santogold

Santogold

alternative/electronic/indie/female vocalists/punk/sexy

Santogold rocks my socks. From the first track (L.E.S. Artistes) to the last (You'll Find A Way (Switch and Sinden Remix)) this album gets me in a dancing mood. Can't wait to see her live, you can just feel the energy in her music. I think she knows how to get a crowd going.
You can listen to her here:
myspace.com/santogold
last.fm/music/santogold