The Blue Shirt Kid meme features a young boy who became a viral sensation during the 2019 PewDiePie vs. T-Series subscriber war. He originally appeared in a video by Indian YouTuber Saiman Says, where he provided surprisingly articulate and well-reasoned arguments in support of PewDiePie. Internet users quickly adopted his image as a symbol of high intelligence, competence, and 'The Expert.' The template is widely used to represent someone who possesses niche knowledge or steps in to save the day with a logical explanation. It captures the wholesome yet powerful energy of a young fan who stood out as a voice of reason in a chaotic internet event.