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.
Emma Ejwertz Emma Katarina Lovisa Ejwertz (born November 22, 1980) is a Swedish musician and singer-songwriter.