Janne "JB" Christoffersson is a Swedish singer and guitarist. He was the singer for the

stoner metal Stoner rock, also known as stoner metal or stoner doom, is a rock music fusion genre that combines elements of doom metal with psychedelic rock and acid rock. The genre emerged during the early 1990s and was pioneered foremost by Kyuss and Slee ...

band

Spiritual Beggars Spiritual Beggars is a stoner metal band from Halmstad, Sweden, formed by Michael Amott, who is known from Arch Enemy, Carcass (band), Carcass and Carnage (band), Carnage. The band is heavily influenced by 1970s hard rock and incorporates ele ...

and plays guitar and sings for the heavy metal band

Grand Magus Grand Magus are a three-piece heavy metal band from Stockholm, Sweden that draws influence from classic heavy metal bands and elements of doom metal. Career The band was formed in 1996 under the name ''Smack'' by former Cardinal Fang voca ...

. In August 2013, JB was announced as a guest on the

Ayreon Ayreon is a musical project by Dutch songwriter, singer, musician and record producer Arjen Anthony Lucassen. Ayreon's music is described as progressive rock, progressive metal and power metal sometimes combined with genres such as folk, elect ...

album '' The Theory of Everything''.

References

Swedish heavy metal guitarists Swedish male singers Living people Spiritual Beggars members Year of birth missing (living people) {{Sweden-singer-stub