Tuomas Holopainen is a Finnish songwriter, producer, and keyboardist. He formed the symphonic metal band Nightwish. Outside of Nightwish, Holopainen released the albums Bloodrayne 2: Deliverance with Silenoz and Jessica de Rooij, and The Life and Times of Scrooge. His most popular songs include The Last Sled, Cold Heart of the Klondike, and Go Slowly Now, Sands of Time. Holopainen has also appeared in the films Imaginaerum, Nightwish: Showtime, Storytime, and the documentary The Scrooge Mystery.