Tennessee's Bonnaroo festival has announced the first batch of acts for its 2010 incarnation, which currently features about a trillion bands. Not all of them are listed below, though. It's sometimes possible to use it as a rough indicator of what bands will be around the whole festival scene the time the Glastonbury juggernaut rolls around.

Perhaps the most exciting possibility, at Bonnaroo and possibly Glastonbury, is that of The Flaming Lips performing Pink Floyd's Dark Side Of The Moon in full. That would be mega indeed. Still, if you're about the general area at the time, or have the money to go, then give it a shot!

Anyway, here's some of the best who line-up for it all:

Dave Matthews Band
Kings Of Leon
Stevie Wonder
Jay-Z
Weezer
Flaming Lips performing Dark Side Of The Moon
The Dead Weather
Phoenix
John Fogerty
Jimmy Cliff
Tenacious D
Zac Brown Band
Avett Brothers
Norah Jones
LCD Soundsystem
Tori Amos
The National
She & Him
The Black Keys
Steve Martin
Jeff Beck
Michael Franti
Dan Deacon
Against Me!
Les Claypool
Thievery Corp
Baaba Maal
Kris Kristofferson
The xx
GWAR
Dan Deacon Ensemble
Tinariwen
Wale
The Melvins
Miike Snow
They Might Be Giants
Isis
Blitzen Trapper
Calexico
OK Go
Mayer Hawthorne and the County
Japandroids
The Dodos
Manchester Orchestra
The Temper Trap
Local Natives
Brandi Carlile
Mumford & Sons
Neon Indian

A feast of plenty.