She ended up getting the role for the TV show, but the pilot episode didn't go over well, so the show was never greenlit. Even without that break-out role, she still garnered quite a successful career.
Camila Cabello - The X Factor
A tiny, young Camila Cabello was first spotted on The X Factor. She was only 15-years-old when she got up on stage to audition for the show. She was eliminated during the "boot camp" stage of the show but returned as part of a powerful girl group, Fifth Harmony.
She departed from Fifth Harmony in 2016 and went on to flourish in her solo career. She's had tons of top singles and features on popular songs. She's easily one of the biggest names in the music industry and has surpassed what Fifth Harmony was.
Jennifer Hudson - American Idol
Jennifer Hudson has a career that goes way beyond singing at this point. She has a Grammy and an Oscar... how many singers can say that? She's even got her own star on the Hollywood Walk of Fame!