Felix Arvid Ulf Kjellberg (born 24 October 1989), better known by his online alias PewDiePie, is a video game commentator from Gothenburg, Sweden. PewDiePie specializes in Let's Play videos of the horror and action video game genres. In August 2013 his channel became the most subscribed channel on YouTube. PewDiePie created his YouTube channel in April 2009. In 2012 PewDiePie's channel began to grow, reaching 1 million subscribers on 11 July 2012, and 2 million subscribers in September 2012.