Won't You Be My Neighbor was written by Fred Rogers and first performed by him as the opening theme of Mister Rogers' Neighborhood, the children's television series that premiered in 1968. Rogers sang a version at the start of every episode while changing into his cardigan and sneakers, making the song inseparable from his gentle on-screen persona. The clip later spread online as a shorthand for kindness and childhood nostalgia, shared in tributes, parodies and reaction edits where its sincerity stands out against faster, louder internet humor.