American Idol is arguably television's biggest, most influential platform for emerging artists over the past 23 years - including relatives of some very famous faces. From siblings of pop superstars to the children of Hollywood royalty, numerous Idol auditioners tried to carve out their own place in the spotlight. Some sailed through the audition rounds, while others never got that golden ticket to Hollywood. Idol season 23 showcased a similar journey, as Backstreet Boys star Brian Littrell's son, Baylee Littrell, auditioned.