Performance-based reality tv shows come and go, but Simon Cowell seems to be mich staple among all of. But, Cowell is certainly a lot more than a television personality. Cowell has found incredible success juggling all of these different careers, and he has an astounding net worth to prove it. Cowell has been working hard for decades, but he quickly became a household name when he served alongside Randy Jackson and Paula Abdul as one of three original judges on the hit television show, American Idol. Cowell quickly became known for his no-nonsense attitude and his straightforward critiques. Cowell served as an American Idol judge for eight long years, and his net worth increased substantially due to his time on the .