The Stranger Things theme was composed by Michael Stein and Kyle Dixon of the synth duo Survive, and it has opened the show since its Netflix debut in 2016. The Duffer Brothers' sci-fi series became a streaming phenomenon, and its music is as recognisable as the Upside Down itself. Season 5, the show's final season, aired in 2025, and fans quickly ripped its end credits music for edits and tribute videos. The clip endures because that slow synth fade instantly signals something big has just ended.