Christie Brinkley and Her Kids Talk About the Personality Traits They All Share

Just what qualities do Christie Brinkley‘s kids say they got from their mom?

Musician Alexa Ray Joel, 31, actor Jack Brinkley Cook, 21, and model Sailor Brinkley Cook, 18 think they inherited her showbiz instincts. “It’s a contagious gene,” says Alexa in PEOPLE’s World’s Most Beautiful issue. “We’re all kind of theatrical and dramatic in different ways.”

Watch the full episode ofWorld’s Most Beautiful: My Beautiful Family now on the new People/Entertainment Weekly...

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