Bands whose names start with 'J'

Jacob's Dream,  a power metal band from Columbus, OH, USA
Jag Panzer,  a traditional metal band from CO, USA
Jaguar,  a nwobhm band from England
Jaldaboath,  a band from England
Jersey Dogs,  a thrash metal band from Hoboken, NJ, USA
Jester's March,  a progressive metal band from Germany
Jesters Of Destiny,  a band from Los Angeles, CA, USA
Jesu,  a band from England
Jex Thoth,  a doom metal band from San Francisco, CA, USA (page not yet online)
Job For A Cowboy,  a death metal band from Glendale, AZ, USA
Jon Oliva's Pain,  a traditional metal band from FL, USA
Jorn,  a band from Norway
Jotunspor,  a black metal band from Norway
Juda's Wake,  a band from Seattle, WA, USA
Judas Iscariot,  a black metal band from USA (page not yet online)
Judas Priest,  a 70's metal/traditional metal band from Birmingham, England
Juggernaut,  a band from TX, USA
Juggernaut,  a band from MN, USA
Julie Laughs Nomore,  a melodic death metal band from Ljusdal, Sweden
Jungle Rot,  a death metal band from Chicago, IL, USA
Jurassic Jade,  a thrash metal band from Japan