Written for a Hitchcock film, it was first recorded by Doris Day, who hated it, and also by Sly & The Family Stone, who didn’t “Que Sera Sera” was written by the legendary team of Livingston and Evans ...

Whether you're starting a war with a former boss you thought was dead or going up against the Man Without Fear in a warehouse brawl, it's good to have a killer theme song as your warm-up music.