The rumor mill for 2011 is already in full swing, but we dedicated some of last week to celebrating our favorite festival of 2010. If you haven’t heard, that would be Sasquatch!. Whether the Gorge, WA extravaganza can repeat in 2011 remains to be seen, but with Foo Fighters locked down as a headliner, they’re certainly off to a good start. Also off to a good start is the Miami electro extravaganza known as Ultra, which today announced that Chemical Brothers, Tiësto, Deadmau5, Chromeo, and Klaxons will be part of its 2011 itinerary. Across the point, Sonisphere UK is also making a case for itself, especially since they snagged the Big 4. As for Coachella? The rumors are starting to pile up.

For a full recap of all the latest festival news and rumors, scroll down and check out this week’s edition of Festivals in Brief.

P.S. Don’t forget to bookmark Festival Outlook and/or follow us on Twitter. That way you won’t have to wait until Wednesday before getting your festival fix.

News:

– CoS dubbed Sasquatch! our festival of the year! If only more festivals were in beautiful gorges.

– Ultra Music Festival loaded its 2011 lineup with The Chemical Brothers, Tiesto, Deadmau5, David Guetta, MSTRKRFT, Empire of the Sun, and more

– In celebration of their 20th anniversary, Pearl Jam will be hosting a music festival “somewhere in the Midwest” .

– Mexico City’s Caifanes will reunite for Coachella 2011! For those interested, layway plans are now available!

– The Big Four will unite again next summer to headline Sonisphere Festival UK.

– A reunited Black Star, Murs, and Immortal Technique will headline the Paid Dues Festival.

Lineup Additions:

– Coachella: Caifanes, Broken Social Scene, The Thermals, YACHT (Expected), The Strokes, Chemical Brothers, HEALTH (Rumored)

– Ultra Music Festival: Official Lineup including Chemical Brothers, Empire of the Sun, Deadmau5, Tiesto, David Guetta, MSTRKRFT, Cut Copy, Girl Talk, Klaxons, !!!, and more

– Bonnaroo: Cold War Kids, Jessica Lea Mayfield, Mumford and Sons (Rumored)

– Sonisphere (UK): Metallica, Slayer, Anthrax, Megadeth confirmed as Friday headliners

– Oxegen (Ireland): Foo Fighters, Blink-182, Arctic Monkeys confirmed as headliners

– Isle of Wight (UK): Added Manic Street Preachers, Nick Lowe, Two Door Cinema Club, Public Image, LTD, & Hadouken!

– End of the Road Festival (UK): Initial lineup including The Walkmen, Twin Shadow, Midlake, & Wild Beasts

– Nova Rock (Austria): Iron Maiden confirmed as headliner, added Flogging Molly

– Open’er Festival (Poland): Coldplay confirmed as first headliner

– Benicàssim (Spain): Arcade Fire confirmed as fourth headliner

– Primavera Sound (Spain): Added Cloud Nothings, Das Racist, Emeralds, Games, Gang Gang Dance, Julian Lynch, Male Bonding, The Walkmen, & Twin Shadow

– Wacken Open Air (Germany): Initial lineup includes Judas Priest, Mayhem, Ozzy Osbourne, and Warpaint

– Lollapalooza Chile: Foo Fighters (Rumored)

–  Vive Latino (Mexico): Official lineup including Devotchka, Sepultra, The National, Chemical Brothers

– Paid Dues Festival: Blackstar, Murs, and Immortal Technique confirmed as headliners

– Summerfest: Toby Keith confirmed as first headliner

– Tomorrow Never Knows: Added Cloud Nothings, Frankie Rose & The Outs, Magic Kids, Screaming Females, Sun Airway, The Dig, Twin Shadow.

– Brooklyn Electronic Music Festival: Added Azari & III

– Riverbend Festival: Beach Boys, Casting Crowns confirmed as first acts

– Bloc Weekend (UK): Added Apparat, Ben Klock, Jamie xx, Ikonika, Magnetic Man, & Modeskeletor