Billy Joel's new galpal whisked him away on a last-minute getaway trip to keep him out of the clutches of his lovesick exwife,Christie Brinkley, insiders reveal.

After dumping her second hubby, the supermodels is reportedly by begging Billy to take her back, but the Piano Man is turning a deaf ear.

Pals say he's thrilled with his new love, artist Carolyn Beegan, and has no intention of rekindling his relationship with Christie.

"He's on a cruise with Carolyn to get away from the situation, "reveal s a source close to Billy. "Christie didn't like it that he went away at the last minute because she needed his support.

"But Billy says she's a big girl and can handle this on her own. He's very committed to Carolyn and believes her needs outweigh Christies's right now."

Cristine has reportedly admitted to Billy that she made a mistake with real estate devoloper Rick Taubman, the man she dropped after just seven months of marriage.

"But he's not falling for it," reveals another source. "He told her: I'm really sorry to hear that,'then quickly changed the subject."

Chistie went on to tie the know with 46-year-old Taubman n the slopes of Telluride, Colorado, in December. They have a 10-week-old son, Jack Paris.

But the 42-year-old beauty is rumored to have wanted out after discovering that Taubman's not as rich as she thought he was. And he had no patience for her glamorous New York lifestyle.

Word is Christie rushed back to the oceanfront estate she once shared with Billy and thier daughter, Alexa,9, in Amagansett, New York- and launced her campaign to win back.

] But Billy's been making beautiful music with Carolyn,28,since last summer.And she'd rather he stayed away from Christie right now, insiders say.

To make sure Christie didn't have a chance to woo Billy again, Carolyn asked him to whisks her away to a secret hideaway, say insiders.

"Carolyn is doing everything in her power to prevent anything intimate from happening," says a source.

Christie and Billy once enjoyed a storybook romance. They tied the knot on March 23,1985, and he wrote his hit song, Uptown Girl,for her.