PewDiePie vs T-Series, also known as the Great Subscriber War,[1] is an online competition between two YouTube channels, PewDiePie (run by Felix Kjellberg) and Indian record company T-Series (run by a company owned by Krishan Kumar), for the title of the most-subscribed channel[note 1] on the video-sharing website. PewDiePie has been the most-subscribed user since 2013, while T-Series has been the most-viewed and second most-subscribed channel since early 2018.