Don't let 'em out, Let 'Em In. Don't let 'em down or up either, just in. And with those instructions, Wings sings along a song and to go with it, they provide cover artwork which only shows Mr McCartney and it looks as if he has already been let in. On the remix is a babe standing at a door which she has opened ready to let us in. She is naked which suggests that there might be a rush to be let in, so get a move on. Lock!