Which singer is also a guitarist, Kang Seung-yoon or Piotr Wiwczarek?
Piotr Wiwczarek Piotr Wiwczarek (born 22 October 1965 in Olsztyn, Poland), also known as Peter, (ex nickname Behemoth) is a Polish guitarist and vocalist who is the frontman for the death metal band Vader, as the only constant member of the band since its inception. He has also collaborated with Kazimierz "Para" Paraszczuk on his tribute album, Bandid Rockin', and is the producer of several of Vader's releases. He is also the founder and guitarist of a side-project, named Panzer X.
Günter Schulz Günter Schulz (or Guenter Schulz) is a German-born guitarist formerly of the band KMFDM. His first credited appearance (as Svetlana Ambrosius, or Svet Am) was on the band's "Naïve" album (1990). He continued using that stage name until 1995's "Nihil". Schulz displayed an impressive mastery of speed metal guitar skills and co-wrote many of KMFDM's songs from the 1990s. He also wrote and performed in various KMFDM side projects, including two albums with Sascha Konietzko's Excessive Force and a solo album by En Esch. He currently resides in Vancouver, British Columbia.