via IMDB: When it came time to film the end titles sequence, where Buckaroo and pals are walking around a dry L.A. aqueduct in step to the music, the music wasn’t ready. Composer Michael Boddicker told the film crew to use “Uptown Girl” by Billy Joel as a placeholder because it was the exact same tempo. Those scenes were filmed with “Uptown Girl” blaring from a boom box tied to the back of the camera truck.
You know which Hong Kong Cavalier knows all about the Uptown Girls… Perfect Tommy. He’s so perfect, he even had a wardrobe change for the credit sequence! I like how Rawhide gives Buckaroo a lo-five when he joins the march. Take a look like at like one minute 15. Oh yeah, one more thing; Nobody can rock two belts like Reno Nevada. One belt to match his shirt, one belt to match his shoes.
The best is the little shuffle by whomever was the ninja slippers. I think it was Reno?
I think it’s either Rawhide, or Blue-Blaze-Irregular Pinky Carruthers.