Jermaine Jones, 'American Idol' Contestant -- History of Violence, Deception, Bullying

Soon-to-be-axed "American Idol" singer Jermaine Jones is a big, fat phony ... who repeatedly LIED to police ... has issues with violence ... and terrorized "Idol" staff ... according to police documents and information obtained by "A.I."

We broke the story ... Jones will be fired from the show tonight for lying to producers about his criminal history ... and now we've learned the troubling details from the multiple run-ins with the law Jones was trying to conceal.

One incident went down on March 5, 2011 ... when Jones was involved in a fight at a Howard Johnson Hotel in Jersey. We're told cops responded ... but Jermaine gave them a fake name -- Joel Jones.

Jermaine was charged with public nuisance and obstruction of justice. He was also arrested for having outstanding warrants.

The next incident went down November 27, 2011 ... when Jermaine was the passenger in a car that was pulled over in Gloucester Township, NJ. Jermaine was questioned by cops and ONCE AGAIN gave them a fake name -- Kareem Watkins.

Jermaine was charged for hindering apprehension and giving false information to avoid self-discovery. He was also arrested for having outstanding warrants ... again.

We've learned ... Jermaine had a total of 4 outstanding warrants ... 3 for driving on a suspended license and 1 for disorderly conduct with an open container.

There's more ... "Idol" sources tell us Jermaine was "very aggressive" behind the scenes ... once terrorizing a member of the staff by screaming at her because he didn't like his wardrobe.

"Idol" sources also tell us ... Jermaine had been questioned about his past by the "A.I." risk management team before he was selected into the top 24 ... and he SWORE, among other things, that he hadn't been in a fight since high school.