The 2011 Roskilde Music Festival has been rolling out its lineup in waves of announcements. The newest additions to Roskilde 2011 include PJ Harvey, Matthew Dear, Kurt Vile, Anna Calvi and Kloster, added on on Feb. 9.

Tickets are just €190 Euros / $240 U.S. for a 4 day festival, or you can sell your soul to the work camp to get in for free. All in all it looks like a blast.

The Roskilde Festival is holding an architectural competition called "Build What Here," with an opportunity to design and build a structure and also win tickets for you and your team. Find out more.

Perhaps the coolest of all festivals on the planet (and one of the oldest), Roskilde Festival has the credibility, history, and coolness that literally no other festival in the world has.

Roskilde was started by two people in their teens back in 1971. That alone makes an interesting start. But it has existed all of these years while being a non-profit supporting ideals like culture and humanity. Wow.

There's also a Roskilde Lounge, which will feature electronic acts from across Europe and stripped-down singer-songwriter performances in a tent for smaller crowds.

Roskilde Festival Tickets

Tickets are no longer on sale.

Roskilde Festival Lineup 2011
ARCTIC MONKEYS (UK)
IRON MAIDEN (UK)
KINGS OF LEON (US)
MASTODON (US)
M.I.A. (UK)
PJ HARVEY (UK)
PORTISHEAD (UK)
THE STROKES (US)
AFROCUBISM (INT)
AUTOPSY (US)
BAD RELIGION (US)
BATTLES (US)
BEATSTEAKS (DE)
BIG BOI (US)
BRIGHT EYES (US)
CHRIS CUNNINGHAM (UK)
DEADMAU5 (CAN)
FOALS (UK)
KAIZERS ORCHESTRA (N)
KILLING JOKE (UK)
FEMI KUTI & POSITIVE FORCE (NGA)
SEUN ANIKULAPO KUTI & EGYPT 80 (NGA)
L.O.C. (DK)
LYKKE LI (S)
MAGNETIC MAN with Special Guests KATY B and SBTRKT DJ Set (UK)
MY CHEMICAL ROMANCE (US)
THE RAVEONETTES (DK)
SWANS (US)
TIMBUKTU & DAMN! (S)
TV ON THE RADIO (US)
VETO (DK)
1349 (N)
ACORN FALLING (DK)
DANIEL ADAMS-RAY (S)
ALCOHOLIC FAITH MISSION (DK)
API UIZ (FR)
ÓLÖF ARNALDS (ISL)
ATMOSPHERE (US)
AWESOME TAPES FROM AFRICA (US)
JULIANNA BARWICK (US)
BE-BEING (KOR)
BLACK MILK (US)
JAMES BLAKE (UK)
CHARLES BRADLEY (US)
BRING ME THE HORIZON (UK)
KARINA BUHR (BRA)
CALLE 13 (PRI)
ANNA CALVI (UK)
CHANCHA VIA CIRCUITO (ARG)
CHASE & STATUS (UK)
CHUCKAMUCK (DE)
CODY (DK)
CONGOTRONICS vs ROCKERS feat. KONONO N°1, DEERHOOF, KASAI ALLSTARS, JUANA MOLINA, WILDBIRDS & PEACEDRUMS and SKELETONS (INT)
CURREN$Y (US)
DÃM-FUNK with MASTER BLAZTER (US)
DARK DARK DARK (US)
DE ENESTE TO (DK)
MATTHEW DEAR – Live Band (US)
DESOLATE (DE)
DESTROYER (CAN)
DJ /RUPTURE (US)
DOP (FR)
DÅÅTH (US)
JUSTIN TOWNES EARLE (US)
ELEKTRO feat. JOHN TCHICAI (DK)
THE EX with ROY PACI (NL)
EYEHATEGOD (US)
FALLY IPUPA (CD)
FRENTE CUMBIERO (COL)
FRISK FRUGT (DK)
THE GASLAMP KILLER (US)
GHOST (S)
GOLD PANDA (UK)
JOHN GRANT (US)
GRAVEYARD (S)
HOFFMAESTRO (S)
HOW TO DRESS WELL (US)
HYMNS FROM NINEVEH (DK)
I WAS A KING (N)
ICEAGE (DK)
ILILTA BAND (ETH)
NICOLAS JAAR (US)
JACKDAW WITH CROWBAR (UK)
JAGWA MUSIC (TAN)
JATOMA (DK)
JUJU (UK/GAM)
KEMIALLISET YSTÄVÄT (FIN)
KITCHIE KITCHIE KI ME O (N)
KLOSTER (DK)
DJ KOZE (DE)
KYLESA (US)
LITTLE DRAGON (S)
LOVE SHOP (DK)
LUKESTAR (N)
LA MAKINA DEL KARIBE (COL)
JANELLE MONÁE (US)
MUNCHI (NL)
NARASIRATO (SOL)
NEXT LIFE (N)
DANIEL NORGREN (S)
OFWGKTA (US)
OH LAND (DK)
OUDADEN (MAR)
IVO PAPASOV & HIS WEDDING BAND (BG)
PARKWAY DRIVE (AUS)
PER VERS (DK)
PRINCE FATTY SOUNDSYSTEM feat. LITTLE ROY and HORSEMAN (UK)
PULLED APART BY HORSES (UK)
RANGO (EGY)
TARRUS RILEY & THE BLACK SOIL BAND (JAM)
ROLL THE DICE (S)
GONGA SAIN & MITHU SAIN (PAK)
JOHAN SARA JR. (N)
SCREAMING FEMALES (US)
SHANGAAN ELECTRO (ZA)
SHUTKA ROMA RAP (MKD)
SOILWORK (S)
SPIDS NØGENHAT (DK)
SURFER BLOOD (US)
SVARTE GREINER (N)
THE TALLEST MAN ON EARTH (S)
TAME IMPALA (AUS)
TERROR (US)
THULEBASEN (DK)
TREMOR (ARG)
TU FAWNING (US)
UNDERØATH (US)
VALBY VOKALGRUPPE (DK)
ANIBAL VELASQUEZ Y LOS LOCOS DEL SWING (COL)
KURT VILE & THE VIOLATORS (US)
THE WALKMEN (US)
WALLS (UK)
WANG LI (CHN)
WEEKEND (US)
WHOMADEWHO (DK)
YELLE (FR)
YEMEN BLUES (ISR)
ZEA (NL)
ZUN ZUN EGUI (INT)
Pavilion Junior
4 GUYS FROM THE FUTURE (DK)
AGENT FRESCO (ISL)
BATTLEKAT (DK)
BOTTLED IN ENGLAND (DK)
BROTHER GRIMM (DK)
DE HØJE HÆLE (DK)
THE ECLECTIC MONIKER (DK)
EMMA ACS (DK)
ESSENCE (DK)
FASTPOHOLMEN (DK)
HAMMONDS, HARRINGTON & DESTROY (DK)
HONNINGBARNA (N)
KIRSTEN & MARIE (DK)
LITTLE MARBLES (S)
THE MALPRACTICE (DK)
MESSY SHELTERS (DK)
NIVE NIELSEN & THE DEER CHILDREN (GRL)
REPTILE & RETARD (DK)
SELVHENTER (DK)
THIS IS HEAD (S)
TÔG (N)
TRUST (DK)
UNDERGANG (DK)
WHO KNEW (ISL)