‘American Idol’ Bikini Girl Pleads Not Guilty to DUI

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Katrina Darrell — the girl who infamously auditioned for “American Idol” back in 2009 wearing just a bikini — insists … she isn’t a drunk hit-and-runner … pleading “not guilty” to DUI today.

TMZ broke the story … Katrina was charged last month with one count of DUI and two counts of misdemeanor hit-and-run, stemming from her March arrest.

As we reported, Katrina was busted in L.A. after allegedly running a red light and smashing into another car. According to police, Katrina attempted to flee the scene … but was pulled over down the street by a cop who heard the crash.

Back at the police station, an officer administered a breathalyzer — and Katrina allegedly blew roughly twice the legal limit in California.

She’s due back in court June 29th.