Gene Klein, born Chaim Witz (Hebrew: חיים ויץ, , born August 25, 1949), known professionally as Gene Simmons, is an Israeli and American musician, singer, songwriter, record producer, entrepreneur, actor and television personality. Also known by his stage persona The Demon, he is the bass guitarist and co-lead singer of Kiss, the rock band he co-founded with rhythm guitarist Paul Stanley in the early 1970s.
Simmons was born Chaim Witz on August 25, 1949, at Rambam Hospital, in Haifa, Israel. At age 8, his mother and he immigrated to New York City. Simmons was raised in a Jewish household, where he practised playing his guitar for hours on end. His mother, Florence Klein (originally Flóra Kovács), was born in Jánd, Hungary. The name Klein, which means "small" in German, has the Hungarian equivalent Kis (a common Hungarian surname); this, however, did not give the band its name. Simmons' mother survived internment in Nazi concentration camps. She and her brother, Larry Klein, were the only members of the family to survive the Holocaust.