High on the list of "Most Shocking" is the story of Bijou Phillips, her half-sister Mackenzie, and their father John Phillips (founder of the rock group Mamas and the Papas). On the Oprah Winfrey Show Mackenzie revealed that she had a consensual incestuous relationship with her father. There's a bit of gray area, though, where some members of the family side with Mackenzie and others call her a liar.

Bijou, who had been living with John since she was three, was told about the abuse when she was thirteen. Yet, shortly after Mackenzie told her, Mackenzie took it back and denied her claim. And you thought your fam had drama.