The Great Subscriber War, better known by its rallying cry 'Subscribe to PewDiePie,' was an online phenomenon that took place between 2018 and 2019 as YouTuber PewDiePie competed against the Indian music label T-Series for the title of the most-subscribed channel. What started as a numbers race evolved into a massive grassroots movement led by fans and major creators like MrBeast, involving billboards, hackings, and worldwide publicity stunts. The meme became a symbol of independent creators versus corporate dominance on YouTube. While the 'war' eventually ended when T-Series surpassed PewDiePie, the imagery remains a nostalgic cornerstone of late-2010s internet culture, often used to rally support for a specific cause or highlight competitive rivalries.