Theme from dating game
"Weirdmageddon Part 1" uses an opening sequence replacing every single main character with Bill and his friends.In this apocalyptic version, Dipper is the only character normally in the opening screen that still appears: he's seen as a human skeleton wearing the blue and white pine hat that appears instead of the normal horned monster skeleton, even if only as a resemblance."Spanish Flea" was also covered by Trudy Pitts on her debut album Introducing the Fabulous Trudy Pitts (1967), by the Doodletown Pipers on The Doodletown Pipers Sing-along '67 (1967) and by Jean-Jacques Perrey and Gershon Kingsley on Kaleidoscopic Vibrations: Spotlight on the Moog, also recorded in 1967.Julius Wechter himself, with his Baja Marimba Band, recorded the song on the 1971 album As Time Goes By.
The Weirdmageddon story arc episodes use corrupted versions of the theme song, along with apocalyptic opening sequences showing the destruction and weird changes Gravity Falls suffers during the event, like an up-going waterfall or Paul Bunyan's statue coming alive, and many Bill images and references.
The song is best known from an instrumental version by Herb Alpert and the Tijuana Brass, released as a B-side to the single "What Now My Love" and on their 1965 album Going Places. "Spanish Flea" featured Alpert's trumpet over a Latin rhythm backing.
and the single peaked at #27 on the Billboard Hot 100, with its A-side reaching No.
The tune has been featured in four episodes of The Simpsons: "The Otto Show", "Team Homer", "Sunday, Cruddy Sunday", and "Natural Born Kissers".
In the fingerprint scene in Rosewood's home in Beverly Hills Cop II, Eddie Murphy (playing Axel Foley) and Judge Reinhold (playing Billy Rosewood) improvised the idea of humming the tune.