Ihsahn

Vegard Sverre Tveitan (born 10 October 1975), better known by his stage name Ihsahn ( ee-SHAHN), is a Norwegian musician, singer, songwriter, record producer, and composer known for his work with black metal band Emperor. Tveitan is a founding member of Thou Shalt Suffer, where he played guitar and keyboard and sang, and Peccatum, a collaboration with wife and musician Heidi Solberg Tveitan, known as Starofash. Since 2006, Tveitan has focused on solo albums and occasional guest appearances.

Beyond metal music, Tveitan's style includes classical, industrial, and progressive elements. He is a progenitor of symphonic black metal.