Star Rachel Bloom specifically requested a "sexy fashion cactus" dress for her big song; costume designer Melina Root later cited it as her favorite costume of the season.
The dancer who explodes in the tag is Kathryn Burns, the show's resident choreographer. Burns has appeared as a dancer on the show many times, but this was her first scene with dialogue.
The first dancer who pops out from behind Rachel Bloom in the opening credits sequence is the granddaughter of famed hoofer Ruby Keeler.