List of bands (19):

Last in Line
Last Riot
Leaves' Eyes
Led Zeppelin
Left to Die
Legion Of The Damned
Lex Legion
Limp Bizkit
Linkin Park
Lions At The Gate
Liquid Tension Experiment
Liv Kristine
Liv Sin
Living Gate
Loathe
Lord Of Shadows
Lord Of The Lost
Lordi
Lost Society
Luxtorpeda