The theme comes from Mighty Morphin Power Rangers, the American television series that premiered in 1993 and adapted footage from the Japanese Super Sentai franchise. Its energetic rock theme, performed for the opening credits, became closely associated with the team morphing and heading into battle. As clips circulated on video platforms and soundboards, the short intro became shorthand for heroic teamwork and 1990s nostalgia, and creators still reuse it to signal that a group is about to take action together.