Nightwing
Although Nightwing is commonly associated with Batman, the title and concept have origins in classic Superman stories. The original Nightwing in DC Comics was an identity assumed by alien superhero Superman when stranded on the Kryptonian city of Kandor with his pal Jimmy Olsen. Drawing inspiration from Batman and Robin, the two protect Kandor as the superheroes Nightwing and Flamebird. Following the Crisis on Infinite Earths continuity reboot in 1985, Nightwing was re-imagined as a legendary vigilante from Krypton whose story inspires Dick Grayson's choice of name when he leaves behind his Robin identity.
Emppu Vuorinen
Erno Matti Juhani "Emppu" Vuorinen (born 24 June 1978) is a Finnish guitarist, most famous for being a founding member and occasional songwriter of the symphonic metal band Nightwish. He is the oldest of five children, having a twin brother and three younger sisters. He started to play guitar as a private study at the age of 12 and since then has played in various bands including Nightwish, Brother Firetribe, Barilari, Almah, and Altaria.