It is the theme song of the 1970s television series Happy Days. Created by Garry Marshall, the … The theme song to Happy Days. Skip navigation Sign in. Happy Days Theme Song Lyrics at Lyrics On Demand. [Original Ending Version:] (Seasons 1 & 2) Sunday, Monday, Happy Days, Tuesday, Wednesday, Happy Days, The Oldest Man: The Hot Dog Vendor from The Carol Burnett Show (full sketch) - Duration: 11:09. The Carol Burnett Show Official 3,350,755 views The theme song to Happy Days. Happy Days is an American television sitcom that originally aired from January 15, 1974, to September 24, 1984, on ABC. It can be heard during the TV show's opening and closing credits as it runs in perpetual rerun syndication.. ... happy days theme song original complete - Duration: 2:17. dolcebimbp Francesco C. 2,110,222 views. "Happy Days" is a song written by Norman Gimbel and Charles Fox. The song was first recorded in 1974 by Jim Haas with a group of other session singers for the first two seasons.