'Day by Day' from Godspell, by Colleen Hewett, was a big hit in Australia that is burned in my memory from my youth, (1971, Number 2 or Number 1 - depending which chart you look at). A boys' choir features strongly in this version, towards the end.
Some silly antics and voice-overs in the video - then again, the original film also had some silly moments.
My favorite version of "Day By Day" is by Jackie & Roy on the CTi label from the early 70s. It starts out slow and gently. The about 2 minutes in, switches to a jazzy alternate-time-signature version, then just about fades out before it returns to the opening hymn-like arrangement.