MusicfestNW, celebrating its 10th anniversary this year, has announced the preliminary lineup for its 2010 festival in Portland, Oregon, and indie juggernauts The Decemberists and The National will be serving as headliners.

The festival, which will take place Sept. 9 – 12, will include performances from 160 other bands, including Okkervil River, Major Lazer, The Walkmen, Ra Ra Riot and The Tallest Man On Earth.

The festival will take place over four nights in 17 different clubs. Festival organizers have also announced that, in a break from tradition, the festival headliners will play outside at historic Pioneer Courthouse Square in downtown Portland.

All ticket information can be found at the festival’s official website here.

Check out the full lineup for 2010’s MusicfestNW below!

The Decemberists
The National
Okkervil River
Major Lazer
Sleep performing Holy Mountain
Menomena
The Thermals
Wiz Khalifa
Ra Ra Riot
The Walkmen
Ted Leo & The Pharmacists
The Helio Sequence
Justin Townes Earle
Baroness
David Bazan
The Tallest Man on Earth
The Gories
No Means No
Man Man
Laura Veirs
Bobby Bare Jr.
Titus Andronicus
Surfer Blood
Akron/Family
Crooked Fingers
Shonen Knife
Japandroids
People Under the Stairs
Cold Cave
Frank Turner
The Builders and the Butchers
Phantogram
Washed Out
Black Prairie
Thee Oh Sees
Abe Vigoda
Big Freedia
MEN
Laser Sword
From Ashes Rise
Devin Phillips
The Suckers
Trash Talk
Scott Kelly
Rocky Votolato
Blue Giant
The Minus 5
Dan Mangan
Jeff the Brotherhood
Marc Olson
Red Fang
The Zeros
Let’s Wrestle
Pierced Arrows
The Bellrays
Weinland
Portland Cello Project
The Magic Kids
DJ Beyonda
Richmond Fontaine
Sallie Ford & the Sound Outside
Tu Fawning
Death by Stereo
Princeton
Kisses
White Hinterland
BOAT
Damion Suom
Typhoon
Y La Bamba