Simon Cowell has been an American Idol staple since its debut in 2002. But with Simon leaving at the end of this season, it's time to reflect on what he brought to the table: unabashed criticism and insults hurled at contestants that dare waste his time.

Perhaps one of his most infamous insults was said to a wide-eyed contestant that "sang" a horrendous rendition of an N'Sync song. "You look like one of those creatures in the jungle with those big eyes... a bush baby."

Hey quipped to Janay Castine in season four, "Let me use a horoscope analogy...a suitcase and plane travel within 24 hours."

Admit it, American Idol fans: It won't be the same without Simon there to take those contestants down a peg.

Simon Cowell Gallery