The singer vows to never "jinx" her beau's Cowboys team by wearing her pink No.9 jersey

By Jessica Gold Haralson
Updated September 12, 2008 01:00 PM

Jessica Simpson has a theory about why she’s been blamed for “jinxing” the Dallas Cowboys: the color pink.

Last year Simpson, 28, was nicknamed “Yoko Romo” by Cowboys fans who believed she’s bad luck to boyfriend Tony Romo’s football performance. On Thursday night, she told David Letterman that she’ll never again wear her pink No.9 jersey to games.

Referring to the “jinx drama”, Jessica said: “I really think it s because I was wearing a pink No. 9 jersey and not a blue one.”

“If you had been in blue that wouldn’t be a problem?” asked Letterman.

“Well so far I’ve been wearing blue, and they’re doing great,” Jessica answered. “I’ll never wear a pink one again!”

Simpson, who was on the show to promote her new country album Do You Know, additionally made an unintentional double entendre.

“I think Tony always performs well,” she said, defending her quarterback beau s football prowess. When the audience gasped at the sexual double meaning, the singer made a surprised expression and laughed.

Letterman retorted, “that’s not why I’m here, okay?”