Witnness Dance

• Richie Hawtin
• DJ Sneak
• Lemon Jelly
• Tom Middleton's Cosmos
• Nightmares on Wax
• Death in Vegas
• Medicine 8
• Complete Stone Roses
• Ray
• Noel Phelan
• 110th St. DJ's

Witnness Main Stage

• Coldplay
• Damien Rice
• Supergrass
• Badly Drawn Boy
• Sugababes
• The Revs
• Echo & The Bunnymen

Witnness Rising

• Röyksopp
• Gemma Hayes
• Mogwai
• The Thrills
• Appleton
• Ron Sexmith
• Mull Historical Society
• Ed Harcourt
• Dave Couse
• Pet Sounds (competition winner)

Witnness Upstage

• Underworld with Darren Price
• The Streets
• Turin Brakes
• The Coral
• The Roots
• Mark Geary
• Relish
• Rubyhorse
• Alphastates

Witnness X

• Jesse Malin
• The Raveonettes
• Tom McRae
• The Rapture
• Maria Doyle Kennedy
• OkGo
• Turn
• The Bandits
• Ten Speed Racer
• Berkeley
• Fionn Regan
• Myslovitz

Witnness Dance

• Dave Clarke
• Laurent Garnier
• Justin Robertson
• Beth Gibbons & Rustin Man
• Phil Hartnoll (Orbital)
• The Pale
• Headzinc & Johnny Moy
• White Trash Girls
• Arveene

Witnness Main Stage

• David Gray
• The White Stripes
• Zwan
• The Frames
• The Cardigans
• The Walls
• Jerry Fish & The Eisley Mudbug Club
• Ashley Hamilton

Witnness Rising

• The Flaming Lips
• Tricky
• The Datsuns
• Flint (Keith Flint)
• Calexico
• Ladytron
• The Jimmy Cake
• The Basement
• The Futureheads

Witnness Upstage

• Manic Street Preachers
• The Polyphonic Spree
• Super Furry Animals
• Beth Orton
• The Music
• Paddy Casey
• Snow Patrol
• Bell X1
• Woodstar
• Zongamin

Witnness X

• Redneck Manifesto
• The Mars Volta
• The Eighties Matchbox B-Line Disaster
• The Warlocks
• Kings Of Leon
• Har Mar Superstar
• The Stands
• Autamata
• Cane 141
• Simple Kid
• Colm Quearney & Hallucinations