From the Other Woman to always and forever, a surprising number of current celebrity wives were mere mistresses first.
Check out some of the most noteworthy examples here ...
Angelina Jolie has wrecked not one but TWO marriages. Billy Bob Thornton was married when the two got together and then Brad Pitt, her costar on Mr. & Mrs. Smith, dumped wife Jennifer Aniston for her.
Tori Spelling hooked up with Dean McDermott while he was still married. And then she was shocked that he cheated on her...
There was no keeping LeAnn Rimes' relationship with Eddie Cibrian out of the tabloids since they got together while his wife Brandi Glanville was filming The Real Housewives of Beverly Hills.
Yep. Britney Spears is a homewrecker. Kevin Federline was with Shar Jackson, the mother of his first two children, when he met Brit Brit.
Brittany Kerr, NBA cheerleader and American Idol contestant, married country star Jason Aldean ... a few years after they were spotted hooking up at a bar while he was still married to his first wife Jessica.
Johnny Depp was with Vanessa Paradis for 14 years VOWING never to marry. Just a year into Amber Heard entering the picture and Depp hooking up with her, he walked down the aisle with the much younger actress.