Christina Christian discovered that she had been voted off the show while she was at Cedars-Sinai Hospital in Los Angeles after suffering from shortness of breath.
Years after his appearence on season 2, Corey Clark penned a book, They Told Me to Tell the Truth, So... (The Sex, Lies and Paulatics of One of America's Idols), where the former "Idol" hopeful alleged that he and judge Paula Abdul had an affair.
Elton John voiced his opinion that there's something "incredibly racist" about viewer voting on "American Idol" after seeing Jennifer Hudson, La Toya London and Fantasia Barrino frequently in the bottom three.
Bo Bice revealed that he had been arrested on a felony cocaine possession charge in June 2001 at a strip club in Madison County, Ala., and was also arrested two years later for marijuana possession, public intoxication, and possession of drug paraphernalia.
Chris Daughtry's fans weren't ready to let him go when he was sent home during the show's fifth season. At least one online petition, with more than 16,000 names attached, called for a recount.
Simon Cowell was thought to be caught rolling his eyes after contestant Chris Richardson gave his condolences to those affected by the tragedy at Virginia Tech where 32 people were killed. Cowell set the record straight the following night, saying he "didn't hear what Chris was saying" and that, "I may not be the nicest person in the world, but I would never, ever, ever disrespect those families or those victims."
David Hernandez reportedly worked as a male stripper, performing fully nude at Dick's Cabaret in Phoenix.
AT&T reportedly offered free texting services and instructions in sending multiple, simultaneous text messages in Kris Allen's home state, Arkansas, potentially benefitting the young singer. AT&T was quoted as saying this was the work of "a few local AT&T employees" in Arkansas. "Idol" producers also asserted that they were "absolutely certain" that the voting outcome was not unfairly influenced.
After his stunning audition, it was discovered that Texas heartthrob Casey James had a reported criminal record, having been sentenced to jail twice, according to RadarOnline.com -- once for reckless driving and another time for driving without a valid license.
The shocking elimination of frontrunner Pia Toscano sent celebrities like Tom Hanks and Ellen DeGeneres running to their twitter pages in disbelief.
The Most Shocking Moments of 'American Idol'
Every season of "American Idol" has been wrought with controversy concerning supposed fan favorites who were voted off, alleged affairs, criminal backrounds and more. Click through our Send-Off gallery to relive the most unbelievable moments of "American Idol."