Among Mariah Carey's many charming quirks, one of her most famous is her hatred of being photographed or filmed from any side other than her right side. The diva has been caught multiple times speaking away from interviewers or the camera to ensure her "good side" is being filmed. And now we finally have insight into why.

On an upcoming episode of her illuminating docu-series Mariah's World, Mimi shares the story that made her wholly prefer her right side with makeup artist Kristofer Buckle. In a clip you can watch above, Mariah explains that when she was 19 and doing an early photo shoot for her record label, a rep on set told her, "This is your good side, only let people photograph you from your good side, ever." That advice stuck with our girl, though she added she also "didn't like" the pictures from the left side either.

Though, Mimi does come around and adds that she "doesn't hate it when it's well-lit, they just have to light it." See! Don't call her a diva!

Mariah's World airs on Sundays, but before that get your #FBF on with a classic Mariah interview from On the Record With Fuse where she speaks about her acting career (and is shot from her right side):