For a while, we thought Kanye West was suffering from a debilitating disease known to affect millions… Bitchy Resting Face.

Just look at him — dude really, REALLY hates smiling. But it turns out, he has an explanation for his mean mug: He thinks he looks cool.

“Back when I was working on ‘Yeezus,’ I saw this book from the 1800s and it was velvet-covered with brass and everything,” the 37-year-old said at The Daily Front Row’s first-ever Fashion Los Angeles Awards held last night, Jan. 22.

“I looked at all these people’s photos and they look so real and their outfits were incredible and they weren’t smiling and people, you know the paparazzi, always come up to me, ‘Why you not smiling?’ and I think, not smiling makes me smile… When you see paintings in an old castle, people are not smiling ’cause it just wouldn’t look as cool.”

Oh, alright then… And he’s not the only star to justify his lack of smile — check out other stars’ explanations for their stoic look!