Sami Yli-Sirniö is a Finnish musician. He is currently the lead guitarist of Finnish metal bands Waltari, Barren Earth and German thrash metal band Kreator. He spent part of his life in Germany and thus has strong ties with the German metal scene. German Rock Hard magazine featured him in 2007 as 'forgotten guitar hero'.
Olli-Pekka Laine is a Finnish musician, currently as a bassist in Finnish metal bands Amorphis and Barren Earth (2008-). He was also formerly in other Finnish metal bands, Nuxvomica (1990), Rytmihäiriö (1991-1992), Mannhai, Chaosbreed (2003-2005) & Kiljuvelka-70.