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.
David Boreanaz revealed in May 2010 that he cheated on his wife Jaime Bergman with TV personality (and Tiger Woods' most well-known mistress) Rachel Uchitel. But as it turns out, the affair was actually "a bonding experience in the long run" that helped his marriage. "In a sacred ground like marriage, you find yourself out of it at certain times for reasons unknown that can be destructive," he told TV Week in October 2011. "Do I believe in giving up? No, I don't. I'm a fighter. I'm a lover."
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