The 48-year-old singer gave fans a saucy display in various shots and outfit changes as she seductively posed as the brand’s oldest model.

In one picture, the mother of two almost fell out of her low-cut satin jumpsuit which gave onlookers a full view of her cleavage.

In the snap, she  was positioned sitting raunchily on a chair, holding a microphone in one hand with her eyes shut.

Jennifer completed her outfit with pointed silver heels embellished with jewels.

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Jennifer Lopez gave fans a saucy display in various shots for Guess jeans campaign

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Jennifer Lopez is the new face of Marciano’s Guess jeans campaign

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Jennifer showcased her physique in a cropped denim top with matching skintight jeans

In another shot, the popstar was captured sitting backwards on a chair as she showcased her enviably pert derrière from a rear view.

The actress also gave fans a glimpse of her toned physique, squeezing her curves into a skintight denim one-piece with a racy cut-out back.

Jennifer wore her hair down in a messy backcombed style and kept her make-up minimal with a nude-coloured lipstick.

The songstress shared the racy snap with her 71.7 million Instagram followers in a nine-block format.

Jennifer Lopez shares upper body workout on Instagram

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Jennifer Lopez gave viewers a glimpse of her cleavage and high-defined pins

Many of her fans were quick to praise the star.

One wrote: “Awesome Jennifer,” while another simply commented “Wow.”

Another picture from the campaign’s Spring 2018 collection, saw the brunette star revealing her toned thighs as she posed on top of a piano.

The hitmaker wore a bright-coloured split-thigh dress which featured a range of patterns in the smouldering snap.

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Jennifer was employed as the brand’s oldest model

The final shot showed Jennifer teasing her audience with a small glimpse of her cleavage and well-defined pins as she posed on a wall wearing a knotted cropped shirt, checkered shorts and a thick, black, high-waisted belt.

She completed her look with a pair of white heels, matching nail polish and silver hoop earrings.

Jennifer spoke of her excitement to front the campaign where she follows in the footsteps of Drew Barrymore, 42, Claudia Schiffer, 47, and Paris Hilton, 36, who have each been the face of the brand.

In a statement, she said: “When I got the call from Paul Marciano asking me to become the new Guess Girl, I was thrilled and excited to be a part of such an iconic brand that I have loved since I was a teenager.”