October 21 to Louis Armstrong in 8 Steps
- October 21 is the birthday of Steve Cropper
- Steve Cropper produced I've Got It
- I've Got It was published by Black Molasses Music
- Black Molasses Music published Mexico City
- Mexico City was written by Perry Botkin
- Perry Botkin (the elder) played guitar for Bing Crosby
- Bing Crosby is one of the many artists that recorded Makin' Whoopee!
- Makin' Whoopee! was recorded by many artists including Louis Armstrong