Jessica Simpson's Latest Butt-Baring Thong Shot Puts Her Daisy Dukes to Shame

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(Photo: 'Dukes of Hazzard'/Warner Bros.)

(Photo: 'Dukes of Hazzard'/Warner Bros.)

To celebrate husband Eric Johnson's 38th birthday, singer Jessica Simpson treated us all to an undeniably sexy birthday treat.

The 37-year-old hottie shared an arresting snap of her flashing her cheeks while bending over in a traditional German milk maiden outfit.

She's not German, but we'll prost to that anyway.

See more of Jessica Simpson's sexiest Instagram shots, below.