12:44 AM EDT 12/22/2014
Originally posted 03/27/2014 07:15PM
American Idol has been on the air for 13 seasons, but somehow there are still plenty of behind-the-scenes tidbits you can't see from home.
"There is a lot of stuff that I did not know," contestant Dexter Roberts tells PEOPLE.
So what are these unearthed gems? Here are five secrets about the FOX reality show.
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