The theme comes from Saw V, released in 2008 as the fifth entry in the Saw horror series created by James Wan and Leigh Whannell. Composer Charlie Clouser's Hello Zepp became the signature cue for the films' closing twists, returning in different arrangements as each trap and timeline connection is revealed. Online, the Saw 5 ending theme has become shorthand for a meticulously planned twist, reused in edits, horror memes and reveal videos where the music alone signals that nothing was accidental.