Nick Kaelar (born Nick Pittsinger, May 15, 1990), better known by his current stage name Varien, is an American composer and producer. While primarily an electronic music producer, Kaelar has incorporated or experimented with styles of metal, orchestral, and ambient music. He is known for his unconventional approach to electronic music, focusing on immersion and storytelling and including many live instruments not normally found on electronic tracks. Featured on a number of labels, mainly Monstercat, many of Kaelar's tracks under the Varien moniker (including "Cloak and Dagger", "Valkyrie" and "Gunmetal Black") have surpassed a million views on YouTube and made worldwide sales. and His music has been featured in many mainstream films and television series such as Furious 7, The Walking Dead, 300: Rise of an Empire, The Purge: Anarchy, and The Real World, among others.