John Cena is a WWE wrestler whose entrance music and name announcement became one of wrestling's most recognisable introductions. The clip spread widely online as part of the unexpected John Cena meme, where ordinary videos were suddenly interrupted by his theme and the shouted introduction. That surprise format made it easy to reuse across YouTube, TikTok and short-form edits, and it remains popular because the announcement instantly signals a dramatic, humorous entrance without needing any explanation.