US News

SAD SONG OF COOK’S SIREN

The teen temptress who broke up supermodel Christie Brinkley’s mar riage abruptly walked away from a singing career that could have earned her mil lions, said a woman who tried to launch the pop-tart wannabe’s stardom.

Diana Bianchi’s “vocal range is just awesome,” raved Tasha Covington, who claims she and others laid out big bucks and hundreds of hours trying to prep Bianchi for the musical big time only to see those dreams dashed. “She’s just a magic star.”

“She would be a superstar right now,” Covington added. “She would have the No. 1 re cord in the country right now. She would have a multimillion- dollar project.”

But Bianchi, now 21, doesn’t have any of that because she suddenly abandoned her plans to become a professional singer, her lawyers confirmed.

Covington said Bianchi broke off contact with her and others who tried to propel her to musi cal stardom six months ago.

She believes the singer did so because Brinkley’s ex-husband, Peter Cook, doled out $300,000 to Bianchi in a confidential legal settlement that kept her mum and prevented a likely sexual-harassment lawsuit.

“She just kinda fell off the face of the Earth,” Covington said.

“I think she might have been a little afraid of success also. He [Cook] was still talking to her, and that influenced her not to go forward with the project we were working on.”

Bianchi met Cook, 49, while working as a teenage clerk in a Hamptons toy store, and he hired her to work at his Southampton architectural firm. Cook testified at trial that he bedded Bianchi about a dozen times.

The affair – which Brinkley learned of in the summer of 2006 – played a key role at the cover girl’s divorce trial, which ended in a settlement last week, days after Bianchi testified about her trysts with Cook.

In an interview yesterday, Cook said he’s got some regrets of his own – for “not making a better decision three years ago.”

If it happened today, he told Fox News Channel’s “Geraldo at Large,” “I’d say, ‘No, I’m a married man. Move on.’ ”

Asked if he was sorry for getting involved with the teen beauty, he added, “Of course I am. How could I not be?”

Covington said that in lyrics that she and Bianchi co-wrote, the aspiring singer expressed anger about the affair and its aftermath.

Bianchi’s attitude in those songs, Covington said, was, “I’m not just this girl that’s a home wrecker . . . I have feelings, too. I made a mistake, I’m sorry for it, but what am I gonna do? It’s done.”

Covington’s lawyer, Lisa Bonner, declined to say whether her client had a written or oral contract with Bianchi.

Bianchi’s lawyer, Joseph Tacopina, said she had no “moral or legal obligation” to Covington, whom he described as “someone who was working with Diana’s producer.”

Tacopina said Bianchi decided to drop singing because “she’s not someone who wanted, for a nanosecond, for people to believe that she was cashing in on her involvement in the Christie Brinkley debacle for her own financial gain.”

“So for that particular reason ,she decided to forgo a career in entertainment. She’s someone who decided to withdraw from the public eye,” he said. “No one can force her to do anything to exploit her potential.”

kevin.fasick@nypost.com