Felix Arvid Ulf Kjellberg (Swedish: [ˈfeːlɪks ˈɕɛlˈbærj]; /ˈtʃɛlbərɡ/ chel-bərg, born 24 October 1989), better known by his online alias PewDiePie (/ˈpjuːdipaɪ/ pyoo-dee-pahy), is a Swedish producer of Let's Play videos on YouTube.
Since 15 August 2013, PewDiePie's channel has been the most subscribed channel on YouTube, being surpassed briefly in November and December 2013 by YouTube's Spotlight channel. Holding the position since 22 December 2013, the channel has reached over 34 million subscribers, as of February 2015. On 19 July 2014, the channel surpassed RihannaVEVO to become the most viewed channel of all time. As of February 2015, the PewDiePie channel has received over 7.9 billion video views.
PewDiePie has been able to positively influence the sales of indie games and raise money for charities via his "Bro Army" fanbase. Aside from his online activities, Kjellberg has also made appearances in other forms of media, including radio and television.