Jade Tailor, who plays Kady, gave singing lessons to Summer Bishil (Margo), as the latter had never sung professionally before. Brittany Curran, who plays Fen, was also unsure of her singing, but both she and Bishil surprised themselves and the cast with their performances.
Hale Appleman stated that the cast had only six days to rehearse the "One Day More" musical number, as the rights to the piece were difficult to secure. As it was, they were not certain if the music had been cleared until a couple of days before shooting.