Looking very 2014 (remember when everyone was obsessed with galaxy-print stuff?), Chalamet was just 18 years old when he walked the red carpet in this Tumblr-approved look.

Years before Kristen Stewart was rocking tiny shorts at the Venice Film Festival or the Oscars, Chalemet donned his finest black denim shorts, some beat-up white sneakers, a crisp white tee, and another blazer for the premiere of "Snowpiercer."

Chalamet's suit was designed by Calvin Klein, according to Just Jared.

Just a few days after the official release of "Call Me By Your Name," Chalamet attended the Gotham Awards on November 27 in a velvet Berluti suit.

Funnily enough, he was twinning with the director and star of "The Big Sick," Kumail Nanjiani, on the red carpet, who was also wearing a burgundy velvet suit. Unlike Chalamet, Nanjiani opted for a white dress shirt, instead of a simple black cashmere sweater.

Chalamet wore another Berluti design for the event, this time in a silk blue suit that he paired with another pair of patent leather boots.

His verdant ensemble was designed by Gucci.

As The Hollywood Reporter wrote, Chalamet wore yet another custom Berluti suit for Hollywood's biggest night. Notably, the "Lady Bird" star didn't work with a stylist until 2021, meaning this look was all him.

According to Vogue, the suit was designed by Haider Ackermann (who used to work at his favorite, Berluti). He added a hefty pair of Christian Louboutin lace-up combat boots to give the suit some edge.

This floral suit was designed by Alexander McQueen, Vogue reported. Instead of his usual black boot or shoe, Chalamet opted for chunky red and white sneakers that retail for $590, also McQueen, which would become a style staple for the actor.

From head to toe, Chalamet was wearing a suit, shirt, and sneakers designed by the late Virgil Abloh during his time at Louis Vuitton, Fashionista reported.

This time, Chalamet's Alexander McQueen suit was black, and almost entirely covered in large, graphic roses. He paired the suit with a black V-neck shirt and square-toed Chelsea boots designed by Christian Louboutin.

Louis Vuitton can call this accessory "an embroidered bib" all they want, but when Chalamet stepped on to the red carpet in this Louis Vuitton by Virgil Abloh design, the entire internet broke down: The "Call Me By Your Name" star was wearing a sparkling harness.

Chalamet, quickly declaring himself Alexander McQueen's No. 1 fan, wore another one of the brand's suits, Vogue reported; this time, a printed suit that almost looked like a watercolor painting.

The whole look was designed by Chalamet favorite Haider Ackermann. The jacket sported unique lace cuffs.

He paired the bold look with a pair of lace-up black boots, breaking all black-tie, red-carpet fashion conventions.

Of course Chalamet had to cuff the pants of this futuristic satin Haider Ackermann suit. How else were we to see the black cowboy boots he chose for the evening?

Chalamet's Louis Vuitton hoodie, designed by Virgil Abloh, was covered in both sequins and Swarovski crystals: 15,000 sequins and 3,000 Swarovski crystals, to be exact, Vogue reported. It took more than 30 hours to complete.

As Page Six reported, the actor's unique paint-splattered overalls were worth a cool $1,700, and were designed by the California-based label S.R. Studio. LA. CA. His space-ready boots were also designed by the same brand.

This monochromatic outfit was designed by Haider Ackermann.

Chalamet, who played Laurie in Greta Gerwig's adaptation of the famed novel, wore a matching pinstriped waistcoat and trousers, along with a striped white shirt and silver pocket chain, at the "Little Women" premiere. He almost looked straight out of a time machine in his Alexander McQueen fit.

Yes, Chalamet's Stella McCartney suit is another solid entry in his fashion canon, but all anyone could actually talk about was the little Eiffel Tower keychain he carried around in his hand.

As Nylon reported, Chalamet's pink suit, designed by Thom Browne, was made out of the coziest corduroy. He opted to rock a pair of limited-edition Prada x Adidas sneakers to complement the look.

As usual, Chalamet stood out in a sea of black suits at the Cannes Film Festival in July 2021, this time by wearing a reflective Tom Ford suit paired with simple black sunglasses and white boots. As usual, he accessorized with multiple rings, bracelets, and earrings.

Chalamet shimmered in this Haider Ackermann outfit, along with a few pieces of  Cartier jewelry, Teen Vogue reported, as he was named a Cartier ambassador around the same time.

In a true fashion-icon move, Chalamet wore actual sweatpants and sneakers to the biggest night in fashion — an especially daring move as he was one of the night's co-chairs.

According to GQ, Chalamet spread the love around wearing many of his favorite designers: A  satin Haider Ackermann tuxedo jacket, a Rick Owens turtleneck, a few Cartier brooches attached to his sweatpants, and, of course Chuck Taylors.

"Whenever I visit America, I am always struck by the wonderful clash of uptown and downtown cultures, of music and sports, and all of this energy just mixing together," designer Ackermann told Vogue.

In typical Chalamet fashion, there's more to this Stella McCartney suit than meets the eye. While it appears to be a floral pattern, if you look closely, you can see it's actually adorned with mushrooms.

This unique look was designed by Alexander McQueen. As per usual, he styled the suit with a pair of Chelsea boots and Cartier jewelry.

Let's take a deep-dive into Chalamet's blazer. It was designed by Louis Vuitton, it's trimmed in lace, it seems to be cropped in the back, and is covered in a sequined pattern. Instead of a shirt, he chose two Cartier necklaces.

An Oscar after-party or an LA biker bar? Chalamet was dressed for either in this leather and denim Alexander McQueen motorcycle jacket and matching jeans.