Conspiracy theories are not just limited to the worlds of science and politics: Radar rounds up 20 of the wackiest conspiracy theories ... in Hollywood. And yes, all of them are real (in some minds): 
 -  OJ Simpson, not Robert Kardashian, is Khloe Kardashian's real dad.
-  Siblings Michael and LaToya Jackson are actually the same person.
-  Beyonce is actually Solange Knowles' mother, not her older sister.
-  Nicolas Cage is actually a vampire who's been alive since the 1800s.
 
                            
                            
                            
                            
                            
                                
                                
                                    
                                        
 -  Ben Affleck and Matt Damon didn’t actually write the award-winning screenplay for Good Will Hunting.
-  Britney Spears is secretly employed by the George W. Bush administration, and her 2007 meltdown was perfectly timed to distract from W's troubles.
-  Michael Jackson was chemically castrated, either by an anti-acne drug that he took at age 12 or by a doctor later in life.
-  Clint Eastwood is the illegitimate son of screen legend Stan Laurel.
-  Katie Holmes and Nicole Kidman were paid by the Church of Scientology to marry Tom Cruise.
-  The CIA killed Bob Marley via boots poisoned with a carcinogenic substance.
-  Marisa Tomei won the Oscar for My Cousin Vinny only because presenter Jack Palance called the wrong name.
Click for the complete list, including the supposedly real (and non-royal) father of Prince Harry.