Saturday, December 18, 2004, 2:12 PM EST
In an interview with "Access Hollywood's" Billy Bush, pop star Jessica Simpson reveals the diet and exercise regime that prepared her to wear "Daisy Duke's" signature shorts in The Dukes of Hazzard.

Simpson says that parting with sugar has proven to be the most difficult task. "I try to stay away from sugars as much as I can, which is hard," she says.

The pop star says that skipping out on her strenuous workout routine is not an option, even if shooting on The Dukes of Hazzard set runs late. "I basically work out two hours a day," she says. "Last night I finally got to go to the gym at ten o'clock... and I was on the treadmill for an hour."

When Bush asked if two hours in the gym every day was a bit much, Simpson replied, "You've seen what I'm wearing, Billy."

Simpson also confirmed that she and husband Nick Lachey send each other risqué text messages to keep the spark alive while she is away from home. "That's our way of flirting," she says. When Bush prompted the "Newlyweds" star to reveal the content of the messages, Simpson smiled and replied, "I can't tell you that, those are our secrets."