As has been long rumored, the music of Led Zeppelin will indeed be bursting from the speakers at the 2008 Bonnaroo Music & Arts Festival.

But though Zeppelin frontman Robert Plant will be at the seventh annual event, he'll be playing with recent collaborator Alison Krauss. The Zeppelin part of the festival will be represented by Lez Zeppelin, an all-female Zeppelin cover band.

Bonnaroo unveiled its most diverse lineup yet today, with Metallica, Pearl Jam, Jack Johnson, and Kanye West headlining a bill featuring more than 100 bands and 20 comedians performing on 13 stages over four days. Bonnaroo is set for June 12-15 on a massive farm in Manchester, Tennessee.

The lineup includes the likes of Willie Nelson, Sigur Ros, Ben Folds, The Raconteurs, Death Cab For Cutie, B.B. King, Levon Helm and the Ramble on the Road, Talib Kweli, Lupe Fiasco, Mastodon, Sharon Jones & the Dap Kings, Broken Social Scene, M.I.A., Iron & Wine, Ghostland Observatory, and Jos? Gonz?lez.

But as has long been Bonnaroo tradition, there is plenty of fare for the jam-band crowd. Phil Lesh & Friends; My Morning Jacket; The Allman Brothers Band; The Bluegrass Allstars feat. Luke Bulla, Sam Bush, Jerry Douglas, Bela Fleck, Edgar Meyer, and Bryan Sutton; Umphrey's McGee; Yonder Mountain String Band; and Derek Trucks & Susan Tedeschi's Soul Stew Revival are all on the bill.

Bonnaroo's Comedy Tent will host Janeane Garofalo, Zach Galifianakis, Mike Birbiglia, Jim Norton, Brian Posehn, and David Cross.

Tickets go on sale exclusively through Bonnaroo.com on Feb. 16 at noon. Ticket buyers will have the option to purchase a commemorative DVD of the 2008 festival that will be sent to them in December.

Here are confirmed artists for the 2008 Bonnaroo Music and Arts Festival:

• Pearl Jam
• Metallica
• Jack Johnson
• Kanye West
• Robert Plant & Alison Krauss
• Phil Lesh & Friends
• My Morning Jacket
• The Allman Brothers Band
• The Raconteurs
• Willie Nelson
• Death Cab For Cutie
• B.B. King
• Sigur Ros
• Levon Helm and the Ramble on the Road
• Ben Folds
• O.A.R.
• The Bluegrass Allstars feat. Luke Bulla, Sam Bush, Jerry Douglas, Bela Fleck, Edgar Meyer, and Bryan Sutton
• M.I.A.
• Umphrey's McGee
• Iron & Wine
• Yonder Mountain String Band
• Swell Season
• Talib Kweli
• Derek Trucks & Susan Tedeschi's Soul Stew Revival
• Broken Social Scene
• Robert Randolph Gospel Show
• Rilo Kiley
• Gogel Bordello
• Mastodon
• Lupe Fiasco
• Against Me!
• Sharon Jones & the Dap Kings
• Pat Green
• Ozomatli
• Tegan & Sara
• Solomon Burke
• Drive-By Truckers
• !!!
• The Avett Brothers
• Israel Vibrations
• Abigail Washburn & the Sparrow Quartet featuring Bela Fleck
• Phil Lesh / Larry Campbell / Jackie Green
• Aimee Mann
• Ladytron
• The Fiery Furnaces
• Orchestra Baobab
• Ghostland Observatory
• Jose Gonzalez
• Dark Star Orchestra
• Minus The Bear
• Donavon Frankenreiter
• Lez Zeppelin
• State Radio
• Battles
• Jakob Dylan
• Two Gallants
• The Sword
• Vampire Weekend
• Little Feat
• Nicole Atkins
• The Felice Brothers
• Mason Jennings
• MGMT
• The Lee Boys
• Black Kids
• Serena Ryder
• Steel Train
• Grupo Fantasma
• Back Door Slam

Bonnaroo Comedy:

• Bonnaroo Late Night Chat About with David Cross
• Janeane Garofalo
• Zach Galifianakis
• Jim Norton
• Brian Posehn
• Mike Birbiglia
• John Mulaney
• Michelle Buteau