Christina Aguilera had fans swooning after being papped with her longtime fiancé Matthew Rutler before later sharing rare photos with him on social media last month. While fans loved seeing the notoriously private couple together on her Instagram account, they couldn’t stop talking about the “Lady Marmalade” singer’s head-turning monochrome outfit either!
The photos were taken before her surprise performance at the star-studded Michelob ULTRA FIFA World Cup Final Round Private VIP Party at The Boom Boom at The Standard, High Line, in New York City on July 19th.

Christina Aguilera Looks 'Flawless' In A Monochrome Ensemble During The World Cup Celebrations
The Burlesque alum posted the snaps for her 10.3M Instagram followers on July 25th. And she proved monochrome dressing can be just as eye-catching as sequins (which she later wore during her performance) in a tiny Patou Bubble ruffled mini skirt – which you can still grab for $690 if you want to steal her style! – paired with a black and white Vaquera crown-embellished polo shirt. The $859 shirt is now down to just $313 if you want to copy Xtina's full ensemble!
She accessorized with black over-the-knee heeled boots and oversized Miu Miu sunglasses. The "Genie in a Bottle" singer's platinum blonde hair was worn in a long, silky straight down do, while her signature glam featured a bronzed complexion and glossy nude lips.
The carousel also featured several sweet photos with Rutler, making the post even more special for fans. Christina and Matthew – an executive and former production assistant whom she met on the set of her 2010 film Burlesque – have been engaged since Valentine's Day 2014 and share a daughter, Summer Rain Rutler. Although they have been engaged for more than a decade, the notoriously private couple rarely share photos together or make public appearances, making the post even more exciting for her army of fans.

Fan Comments
"UGH looking forever gorgeous and your handsome man @m_rutler right by your side!" exclaimed one fan in the comments. "Lovers," gushed a second, followed by three red heart emojis.
"You two," praised a third, followed by a red heart emoji. "Handsome couple," raved a fourth, while a fifth called them "cuties," followed by a red heart emoji.
Naturally, Christina's outfit and glamorous appearance also received plenty of praise from fans. "Iconic," wrote a sixth fan. "Flawlesstina," declared a seventh, while an eighth said, "My favorite."
"Stunning," complimented a ninth, followed by two heart-eyes emojis, while a tenth wrote, "You are a gem." "Love you queen," added an eleventh.

