Happy Days (TV theme)
[3] It can be heard during the TV show's opening and closing credits as it runs in perpetual rerun syndication."Happy Days" was first recorded in 1974 by Jim Haas with a group of other session singers for the first two seasons.[4] These versions were used only during the closing credits of Seasons 1 and 2, with an updated take on "Rock Around the Clock" by Bill Haley and His Comets used as the opening theme."Happy Days" was re-recorded by Pratt & McClain at ABC Recording Studios in Los Angeles in December 1975[5] with different lyrics for both the opening and closing credits for Seasons 3 through 10, with the duo including the song on their 1976 album Pratt & McClain Featuring Happy Days and releasing it as a single.An instrumental version of the song plays in the background of some of the "Cooking with Sara" Flash games.