"Run Rabbit Run" is a well-known British song that dates to 1939 and became closely associated with wartime Britain. Over time, short excerpts of it have kept circulating in comedy edits, horror-tinged memes, and chase videos because the light, singable melody contrasts so sharply with panic on screen. That mismatch is a big part of why the sound still works online: it can feel playful in one clip and oddly creepy in another, depending on the footage and timing.