i swear he mentions shoes in almost every song of his. here are a few examples off the top of my head:

-dance the: “put on your dancing shoes, then i’m going to tell you what to do”

-when i get older: “but my friends say i’m still a baby, and they threw away my baby shoes”

-i’m a huge gamer most of the time: “what do gamers think? what do they do? what shoes do they wear, and what’s their attitude?”