For her 1990 Blonde Ambition World Tour, Madonna solely hired the back-up dancers who appeared in the music video for her hit song "Vogue." There were no public auditions.
Damon and Ricky are cast on a reboot of Solid Gold (1980). Not only was that show never rebooted, the term "rebooted" was not in use at that time to refer to remakes of intellectual property.