A Mudcat thread exists for Hoagy Carmichael's Up A Lazy River.
For at least one generation, that song brings back memories
of the Mills Brothers who started singing it in their youth
and went on singing it for literally decades.

Up A Lazy River: early Mills Brothers 'soundie'


with Bing Crosby in 1949


1961: Jack Benny's writers script a sketch for the Mills Brothers [the singing starts at 4 minutes]

1967: Dean Martin show with the Mills Brother

I don't think the blue clickies are clicking ...

<a href=https://www.youtube.com/watch?v=c_WhfbPQDsQ>1967: Dean Martin show with the Mills Brother</a>