Christina Aguilera swaps shirt for a jaw-dropping diamond necklace in Paris

Who needs a top when you have Chopard diamonds? Certainly not Christina Aguilera.

The singer, 45, posted a series of photos from Paris to Instagram on Wednesday, posing in an eye-popping Chopard diamond necklace paired with a voluminous black tulle skirt — and nothing else on top.

The look was styled by Chris Horan, who accessorized the “Dirrty” hitmaker with coordinating Chopard diamond circle earrings.

Aguilera captioned the carousel “northern lights, parisian nights ✈️🌌🌃🌠⭐️💫✨.”

She was in town to perform at the Gala des Pièces Jaunes, a charity event aimed at supporting children and teenagers in French hospitals. The concert, which also featured headliners A$AP Rocky and K-Pop band Stray Kids, is set to be broadcast on French television on Friday.

In fan videos of the performance posted on social media, Aguilera appears to be wearing the same showstopping jewelry — albeit with a bodysuit and glittering belt.

The Chopard moment comes shortly after Aguilera worked with the luxury Swiss jeweler for her holiday special “Christina Aguilera: Christmas in Paris,” which aired on CBS on Dec. 22.

The hour-long program marked the 25th anniversary of her 2000 holiday album “My Kind of Christmas.”

For the special, the mom of two embraced the glitz and glamour of the season with an array of exquisite jewels, including a diamond and emerald choker and a pair of dazzling diamond chandelier earrings.

At another event in the City of Light this month, she went for a sleeker look in Saint Laurent’s belted lambskin jacket ($10,400) worn as a dress, styled with leather gloves.

She added a star-spangled Chanel purse that goes for a whopping 39,000 on the resale market — talk about bling.