Happy_days_theme_song

The show did not originally open with the song "Happy Days." Instead, it relied on a 1950s rock-and-roll classic to set the mood.

As the show shifted to a live studio audience and focused more on Henry Winkler's Fonzie character, producers replaced the opening with the now-iconic "Happy Days" theme. happy_days_theme_song

The "Happy Days" theme was penned by the prolific duo and Charles Fox , who were also responsible for hits like "Killing Me Softly with His Song" and the theme for Wonder Woman . Performer(s) Usage Period Original Recording Jim Haas (lead) & session singers Seasons 1–2 (Closing Credits) The Hit Version Pratt & McClain Seasons 3–10 (Opening & Closing) Final Version Bobby Arvon Season 11 (Opening & Closing) Commercial Success and Pop Culture Impact The show did not originally open with the song "Happy Days