All The Cats Join In--Interesting Random Facts

All The Cats Join In is from Disney's 1946 Make Music Mine.  It was a follow-up, of sorts, to Fantasia.
Fantasia, as Walt Disney originally envisioned it, was supposed to be an ongoing roadshow.  Every few years it would get re-released to theaters with a few new cartoon shorts swapped in.  Unfortunately it failed at the box office, so this vision never happened.  But some of the left over ideas from Fantasia got released in Make Music Mine.
Plus, some modern jazz numbers got added as well.
Benny Goodman and his orchestra actually contributed not one but two songs to the project--All the Cats Join In and After You've Gone.  
I remember watching these cartoons on the Disney Channel growing up in the 1980s.  Although I was too young to appreciate swing music at the time, and mostly just remember the visuals.  Re-watching it now, though, it strikes me how hopping this song is.  Yet more evidence that there was a lively music scene going on in the 30s and 40s.  (Sometimes there is a myth that nothing interesting in music was happening before rock and roll).

Video below:
All The Cats Join In 1946 - Benny Goodman



Also, via Wikipedia:
This segment was one of two sections in which Benny Goodman and his Orchestra contributed. Their music played over visuals that were drawn by a pencil as the action occurred. The scene portrayed teens of the 1940s being swept away by popular music. This segment features some mild female nudity that was edited out in both the US and UK DVD releases, although the film's Japanese Laserdisc and VHD releases has the segment features some mild female nudity intact and uncensored.