Adam Lambert - American Idol
Adam Lambert became the face of Queen and was even nominated for a Grammy. He actually got his start on American Idol, which has happened for a lot of celebs! He's done pretty well for himself since this competition show.
Khloe Kardashian - Keeping Up with the Kardashians
KUWTK is simply a side gig for Khloe at this point. Most of her time is spent building her brand on social media, running her very successful clothing line, and raising her daughter, True. Of course, Khloe got her start because of the TV show, but has truly built an empire!