Mariah Carey in You Don't Mess With the Zohan (2008)
Director: Dennis Dugan
In an off-the-wall movie about an Israeli counter-terrorist named Zohan (Adam Sandler) who fakes his own death to follow his dream of becoming a top notch hairstylist in New York City, it makes perfect sense that Zohan ends up in the dressing room of an equally flamboyant figure, Mariah Carey. She plays an exaggerated version of her diva self. Which isn't really acting if you ask us.