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The country singing cutie looked a bit disheveled as she hopped in and out of her chauffeured ride - smiling for paparazzi snapping up pics at the scene.

Meanwhile, Jessica's longtime trainer, Mike Alexander, recently chatted with FOX Pop Tarts about his client's workout regimen, saying, "Jessica really hates squats and jumping -- any type of jumping she’s not on board with. But she loves reverse lunges because it really isolates her glutes and her hamstrings."

Explaining how to get into fine form in short periods of time, Miss Simpson's trainer explained: "Squats and lunges are great butt exercises because you can use your own body weight and do several varieties of them. It’s the one thing that clients don’t enjoy because it’s not easy when done right, you’re working all the muscles in your legs which is far away from your heart so your heart is pumping like crazy so it elevates your heart rate and takes it out of you but its worth it in the end. Cardio is also really important when working on a short time frame and don’t focus too much on mid-section. Women tend to do this because its showing in a bikini but then neglect other parts which are just as important aesthetically-speaking. If you work your stomach too much you can build up the muscles in your abdominals and it can then appear dissented."

For more on Jessica's workout regimen and getting into tip-top shape, visit FOX Pop Tarts!