Nine on stage with Netherbird 2014-11-14. Photo by Soile Siirtola (extremmetal.se)

Nine is a long time friend of the band and finally joined Netherbird live 2014-11-14 for a cover duet of the Sentenced cover Nepenthe, something he and Nephente had been discussing for a long time. Nine is the vocalist of Wormword and Withershin.

Links
Wormwood official website
Withershin facebook page