PewDiePie vs T-Series was a widespread YouTube event in which Swedish YouTuber PewDiePie, who held the title of the most-subscribed YouTube channel from Augto March 27, 2019, jokingly declared a race against quickly-growing YouTube channel of Indian music label T-Series as a way to remain the most-subscribed channel.Īlthough it was initially started as a joke in late 2018, it eventually turned into a large online campaign that ended up lasting well into 2019.