Air Date: Sundays on E! (9-10 p.m. ET)

E! NEWS EXCLUSIVE: Mariah Carey Explains Why She Only Likes to Be Photographed From Her Right Side

MUST CREDIT E! NEWS AND LINK BACK TO: EOL EMBED: Watch a brand new episode of Mariah's World Sunday at 9 p.m., only on E!

One photo shoot changed Mariah Carey's life forever.

On this Sunday's Mariah's World, Mariah opens up about why she only likes to be photographed from her right side. While getting her makeup done by Kristofer, Mariah tells the story of how she was told her right side is her "good side."

In this clip from the episode, Mariah explains that when she was 19 and doing her first photo shoot, a lady on set told her, "This is your good side, only let people photograph you from your good side, ever."

After hearing this, Mariah admits that she "didn't like" the pictures from the left side.

"Maybe you had a crappy photographer," Kristofer tells Mariah.

"I think I did and makeup artist," Mariah replies. "And I stuck to it because that was her job."

But, Mariah admits, "I don't hate it when it's well-lit, they just have to light it."

Watch the Mariah's World clip above to see the songstress tell the story!