The official line-up is going to be announced at Monday's free festival launch party at the Crocodile, but until then, this unofficial Sasquatch! blog is doing a pretty good job keeping track of who's confirmed (fucking Pavement!), who's just got telling gaps in their touring schedules that weekend (Why?!), and who just might maybe be playing if you believe hard enough (dare to dream, LCD Soundsystem?):

Confirmed
Pavement, Neon Indian, Vetiver, Wale, Morning Teleportation, Miike Snow, Why?, Cymbals Eat Guitars

Rumored
Nada Surf, Vampire Weekend, Local Natives, Girls, Soundgarden, The National, Edward Sharpe & the Magnetic Zeros

Ok, these are just my guesses based on some fact, some probability and a lot of hunch, oh and it is not, I repeat is not, the actual lineup!

Pavement, Soundgarden, Flaming Lips, Them Crooked Vultures, Faith No More, MGMT, The Black Keys, Band of Horses, Jamie Liddel, Phoenix, Chromeo, The Dead Weather, LCD Soundsystem, Peter, Bjorn and John, Vampire Weekend, The National, She and Him, Broken Bells, Japandroids, Nada Surf, The Thermals, Local Natives, Girls, Edward Sharpe & the Magnetic Zeros, The XX, The Temper Trap, Neon Indian, Vetiver, Wale, Morning Teleportation, Miike Snow, Why?, Cymbals Eat Guitars, Owen Pallet, Laura Veirs, Fresh Espresso, As Tall As Lions, Macklemore, Portugal. the Man, Frightened Rabbit, Bassnectar, Mew, Dirty Projectors, The Moondoggies and a bunch of bands I have not heard of yet...

(For what it's worth, word on the street here is that they're right about Soundgarden.)