Credit: Lucas Dawson/Getty Images; Jamie McCarthy/Getty Images for QVC

Jessica Simpson is slamming a new tabloid report linking her with philandering golfer Tiger Woods.

The new issue of Star magazine devotes its cover to a "shocking story" about an encounter between the 33 year-old golfer and Simpson, 29, during a July 2009 golf tournament. Star claims that the pair flirted heavily in the presence of Simpson's then-boyfriend Tony Romo, and that they exchanged text messages days later.

"[I] can't believe that I'm on the cover of star magazine with Tiger Woods, what a JOKE! 'The Shocking Inside Story' is (insert drumroll) A LIE!" the singer Twittered Wednesday.

A Simpson source also says there is no truth to the story.

"No part of this story is true," the source scoffs to The pal explains that Woods and Simpson indeed attended the same AT&T National Pro-Am golf tournament in Bethesda, Md., where they were photographed with Romo.

"They met quickly and took a photo together," the insider says. "She was only there for a few hours to sing the national anthem."

Woods has enough to worry about without being linked to the blond star. Moving crews were spotted outside his family mansion in Windermere, Fla on Tuesday. Seen out and about without her wedding ring, his wife Elin Nordegren, 29, is "making plans to move out and take the kids [Sam, 2, Charlie, 10 months] with her," a source told the New York Post. "She's planning to go somewhere warm and Tiger-free for Christmas."