Robert Pattinson shows off his vampire charm in a blood red Gucci suit. Photo: AP

That's according to a new study in the Journal of Experimental Psychology, which found that women see guys wearing red as powerful, attractive, and sexually irresistible, the Daily Express reports.

Um... we do?

Scientists made the colorful conclusion after asking women in the UK, U.S., China, and Germany to rate photos of "moderately attractive" men wearing tops in different hues, according to the paper.

Guess what? The boys in red came out on top.

"Our findings suggest the link between red and sex also applies to men," study author Andrew Elliot of Rochester University told the paper, noting that a study two years ago showed that men respond to women in red (duly noted!).

"This suggests women's thoughts and feelings towards men are, at least in part, primitive.

"A man who wears red may feel dominant, which influences his self-confidence and behavior, and may impress women."

So that's where our Elmo crush comes from...

Meanwhile, check out "Mad Men" beauty Christina Hendricks in a sexy red dress for British GQ.