Terrell and Derrell Brittenum (Season 5) - The twin brothers each advanced to Hollywood week and were featured prominently on the broadcasts, but were disqualified when they were accused of identity theft.
Chris Golightly (Season 9) - Golightly made it into the top 24 before he has taken off because producers discovered he had a previous recording contract.
Jacob John Smalley (Season 2) - Smalley got as far as the final 32 before he was eliminated in the first round based on fan votes.
Akron Watson (Season 6) - Watson was dumbfounded when producers told him he would not be advancing to the Hollywood round because he'd been accused of misdemeanor marijuana possession.
Ju'Not Joyner (Season 8) - Joyner was knocked off after making it to the top 36 and has made repeated claims that the show is rigged.
Donnie Williams (Season 3) - After a DUI charge was discovered, Williams was DQ'd. He had made it to the final 32.
Jaered Andrews (Season 2) - Andrews was disqualified from the show after assault allegations surfaced.
Thomas Daniels (Season 6) - Daniels was one of the first contestants to make it to Hollywood in Season 6 -- though he never really got there. Producers discovered DUI and hit-and-run accusations against him.