The singer, 42, looked sensational in the figure-hugging outfit as she stepped out in style for the chat show.
She teamed the sexy trousers with a plunging satin top which flaunted a glimpse of her ample assets.
The blonde beauty accessorized her look with dark designer sunglasses, silver hoop earrings and an array of stylish necklaces.
Christina boosted her height with strappy heels as she left the studios with a male companion.
Stunning: Christina Aguilera showed off her physique in skin-tight black leggings as she left Jimmy Kimmel Live on Tuesday
Physique: The singer, 42, looked sensational in the figure-hugging outfit as she stepped out in style for the chat show
Christina Aguilera is bold in all black figure-hugging outfit
Earlier in the evening she had arrived in a different outfit, donning long leather heeled boots and a red patterned skirt which she teamed with a black jacket.
Her outing comes after last week she left her fans divided as she collaborated with Latto on an ad song for the food delivery app Just Eat.
Just Eat, which operates in several European countries, brought the two musical artists together for an Italy-themed extravaganza.
The duo were decked out in a string of splashily elaborate costumes, flashing the flesh in sumptuous ball gowns and saucy metallic lingerie.
Their song consisted mostly of Latto rapping about Just Eat, while Christina provided backing vocals and let loose with her famous melismas.
Fans leapt into the comments, and while some showered praise on the ad, others groused about how the ‘lamest song’ was ‘SO beneath’ Christina.
Just Eat pulled out the stops for their new ad, which opened with Christina and Latto in an extravagantly designed hallway made to look as if it were done in marble.
The two songstresses swanned across a set of chessboard tiles after descending a pair of curved staircases were set against some classical-style statuary.
Outfit: She teamed the sexy trousers with a plunging satin top which flaunted a glimpse of her ample assets
Ensemble: The blonde beauty accessorized her look with dark designer sunglasses, silver hoop earrings and an array of stylish necklaces
Arm in arm: Christina boosted her height with strappy heels as she left the studios with a male companion
Style: Earlier in the evening she had arrived in a different outfit, donning long leather heeled boots and a red patterned skirt which she teamed with a black jacket
On the walls were several paintings of both Christina and Latto, designed to be a cheeky pastiche of Renaissance artworks.
Latto looked every inch the busty bombshell in a pale blue frock covered in sequins, while Christina was swathed in a rose gold ball gown and glittering diamonds.
At one point, the ad even saw them floating along a manmade canal in a gondola while chowing down on Just Eat food deliveries.
‘The vocals you gave were simply marvelous!!!!!’ squealed one fan in the comments. ‘You need to collaborate in a full song.’
‘Yaaaaaaaaas!’ exclaimed another fan, while a third blared: ‘IN LOVE WITH THIS,’ and still another said wistfully: ‘I’m sad this is just a promo.’
‘How PERFECT is it?’ one admirer effervesced as another wrote: ‘CREDITS TO THE MARKETING TEAM! That’s what a team can do with a BUDGET.’
Not all the commenters were so enthusiastic, however, with one qualifying his praise: ‘Vocals amazing but I wish the same effort was put into her own art.’
Glowing: She opted for a radiant slick of makeup and wore her blonde tresses in a choppy bob style
Animated display: She showed off her personality as she flashed a peace sign for the cameras
Career moves: Her outing comes after last week she left her fans divided as she collaborated with Latto on an ad song for the food delivery app Just Eat
Fun: At one point, the ad even saw them floating along a manmade canal in a gondola while chowing down on Just Eat food deliveries
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Leather look: She showed off her edgy sense of style in the black jacket and high heeled boots
Christina Aguilera posts BTS from shoot on behalf of Just Eat
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‘Girl, we wanted a new song not a new ad campaign,’ moaned one fan with a crying iemoji, and another opined that Katy Perry’s Just Eat commercial last year ‘was better than this and definitely was catchier.’
‘Should’ve got @nickiminaj instead of that other girl,’ one commenter wrote, adding by way of compliment: ‘Christina ate though. No pun intended.’
Others were more openly contemptuous of the ad, such as one who wrote: ‘This should be SO beneath you. I don’t know what to think.’
‘This is the lamest song,’ another commenter wrote. ‘I mean, is this an ad for Uber eats? I hope you got paid, in money, not food.’
