Well, this should be fun. The Bonnaroo Music & Arts Festival has proved to be quite the epic annual event. For its 2010 edition, the festival organizers have decided to make the lineup announcement equally epic, so for the next 24 hours or so we’ll be glued to our computer screens waiting to see who will be hitting Manchester, Tennessee from June 10-13.

As previously mentioned, the lineup announcement will work something like this. Unlike previous announcements, the 2010 bill will not be unveiled all at once, but rather throughout the day, with the goal being to “generate conversations about the lineup a few acts at a time.” Starting at 10 AM EST (barring any early leaks), bands will begin announcing their participation via various social media outlets and bonnaroo.com. It’s basically like one giant, procrastinating-inducing puzzle. Fortunately, just in case we don’t figure it out by then, Bonnaroo will end our agony by announcing the full lineup later tomorrow night.

Given all this, it only makes sense that we start an open thread, where you guys can chat, complain, and post any discoveries you find. We’ll of course keep track as well!

7:30 pm Update: 90 minutes left! LCD Soundsystem, Les Claypool, Lucero, Kris Kristofferson, Martin Sexton, and Deadmau5 among the newest additions.

5:30 pm Update: Add The Dodos, Tori Amos, Tenacious D, Damian Marley & Nas, Lotus, Blitzen Trapper, Calexico, Mumford & Sons, Aterciopelados, and John Butler Trio to the mix. Still waiting for Neil, Pavement, and Roger Waters…

3:30 pm Update: A few more worthwhile confirmations: The Dead Weather, They Might Be Giants, The Melvins, Dave Rawlings Machine, John Prine, Mew, Dr. Dog, Clutch, and The Bakerton Group. Also, a few more expected: Alicia Keys, Pavement, and Spoon.

2:00 pm Update: So far, we’ve been going at this for a good five hours and we still only know about a 1/4 of the acts. Of those however, there are certainly a fair share of early highlights, including Jay-Z, The Flaming Lips, Regina Spektor, The National, Disco Biscuits, Jeff Beck, Norah Jones, Weezer, She & Him, and Phoenix.

We can also confirm the participation of Kings of Leon, Dave Matthews Band, Stevie Wonder, Dropkick Murphys, and Zac Brown band. As for what we can expect to see in the hours ahead? Neil Young, Spoon, Broken Social Scene, and Deadmau5. Also don’t be shocked if Roger Waters (performing The Wall), Pavement, and My Morning Jacket make an appearance.

Update: Here is the initial lineup…

Against Me!, Aeroplane, The Avett Brothers, B.o.B., Baaba Maal, The Black Keys Bassnectar, Baroness, Blitzen Trapper, Blues Traveler, Brandi Carlile, Calexico, Chromeo w/ Darryl Hall, Clutch, Cross Canadian Ragweed, Damian Marley & Nas, Dan Deacon Ensemble, Dave Matthews Band, Dave Rawlings Machine, The Dead Weather, Deadmau5, Diane Birch, Disco Biscuits, The Dodos, Dr. Dog, Dropkick Murphys, Edward Sharpe & the Magnetic Zeros, The Entrance Band, The Flaming Lips (w/ Stardeath and White Dwarfs) performing Dark Side of the Moon, The Gaslight Anthem, GWAR, Here We Go Magic, Hot Rize, Jamey Johnson, Japandroids, Jay-Z, Jeff Beck, John Prine, Kid Cudi, Kings of Leon, Kris Kristofferson, Ingrid Michaelson, Isis, John Fogerty, Julia Nunes, LCD Soundsystem, Les Claypool, Local Natives, Lotus, Lucero, Manchester Orchestra, Martin Sexton, Mayer Hawthrone & the County, Medeski Martin & Wood, Melvins, Michael Franti & Spearhead, Miike Snow, Miranda Lambert, Monte Montgomery, Mumford & Sons, The National, Needtobreathre, Neon Indian, Nitty Gritty Dirt Band, Norah Jones, OK Go, Phoenix, The Postelles, Punch Brothers, Rebelution, Regina Spektor, Rise Against, She & Him, Steve Martin with the Steep Canyon Rangers, Stevie Wonder, The Temper Trap, Tenacious D, They Might Be Giants, Thievery Corporation, Tinariwen, Tori Amos, Tokyo Police Club, Trombone Shorty & Orleans Avenue, Wale, Weezer, The xx, Zac Brown Band

Here are other expected and rumored acts.

Now, buckle up kids! It’s going to be a long and wild ride!

Feature image courtesy of Ryan Mastro…