* Nostalgia and entertainment value: It's interesting to see how far these contestants have come since their early auditions. These clips often provide a sense of nostalgia for fans who remember watching the show.
* Promoting the show's legacy: By showcasing successful alumni, The X Factor highlights its role in launching careers and reinforces the show's relevance.
* Promoting the contestant's current work: Showing these audition clips helps promote the artist's current music and projects, especially if they are appearing on the show again or are celebrating an anniversary.
* Highlighting the show's impact: The X Factor's creators want to showcase the show's success and influence on the music industry.
In the case of Camila Cabello, her X Factor audition went viral and made her a fan favorite. This, combined with her subsequent success, makes her audition a prime example of how the show can launch careers.