Progressive rock

Jeremia

Progressive rock · Folk rock

Jethro Tull

Rock · Classic rock

Jhariah

Indie Rock · Indie

John Lees' Barclay James Harvest

Progressive rock

Jon Anderson

Rock · Classic rock

Journey

Rock · Classic rock

Jumbo

Rock · Alternative

Jump

Rock · House

Junius

Indie · Alternative rock

K2

Experimental · Progressive rock

Karnataka

Female vocalists · Chillout

Karnivool

Rock · Alternative

King Eider

Progressive rock

Kingcrow

Rock · Hard Rock

Knifeworld

Pop · Metal

Kong

Rock · Experimental

Kopecky

Progressive rock · Instrumental

Krakatoa

Rock · Progressive rock

Krokodil

Progressive rock · Psychedelic

Landmarq

Rock · Female vocalists

Lazuli

Rock · Progressive rock

Lesser Key

Rock · Alternative rock

Letz Zep

Rock · Progressive rock

Lifesigns

Experimental · Progressive rock

Lucid

Electronic · Progressive rock

Magenta

Rock · Female vocalists

Magma

Experimental · Progressive rock

Magnum

Rock · Classic rock

Man Made

Progressive rock · Techno

Máquina!

Rock · Progressive rock

Marillion

Rock · Classic rock

Martin Barre

Rock · Classic rock

Martin Turner

Rock · Classic rock

Martin Turner's Wishbone Ash

Rock · Classic rock

Mess

Punk Rock · Punk

Messenger

Metal · Progressive rock