The ultimate betrayal! Check out the biggest celebrity cheating bombshells through the years -- including scandals involving Kristen Stewart, Tiger Woods, Katharine McPhee and Ashton Kutcher.
In 2008, supermodel Christie Brinkley's husband of 12 years Peter Cook admitted to having an affair with his 19-year-old assistant Diana Bianchi. The couple divorced that same year, and publicly warred in the press thereafter. "I just want peace. And every time I have any joy or any kind of success in anything, he has to try to destroy it," Brinkley said on the TODAY show in March 2012. Cook's response? "[She] does not want peace, she wants attention," he told Page Six.
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