The coronation of King Charles III was attended by members of the British royal family, prime ministers, presidents, foreign royals, global luminaries—and plenty of celebrities.

Stars packed into Westminster Abbey for the historic crowning moment of King Charles and his wife, Queen Camilla. Below, we name every celebrity who was amongst the morning's congregation.

Katy Perry

Perry, who headlined Charles's Coronation Concert in London, attended the ceremony in a dramatic lavender monochromatic ensemble. The look consisted of a blouse, a pencil skirt, and a large fishnet hat.

Lionel Richie

Richie, who also performed at the Coronation Concert, looked dapper in a black long coat and gray pinstripe trousers as he arrived at Westminster Abbey ahead of the ceremony.

Dame Emma Thompson

The actor was spotted heading into the event wearing a long floral red coat over a black dress.

Dame Judi Dench

Eagle-eyed fans spotted Dench during the livestream of the ceremony.

Dame Maggie Smith

The Harry Potter star was also in attendance at the abbey, where she was seen wearing a cornflower blue ensemble.

Jill and Finnegan Biden

Attending on behalf of President Joe Biden, first lady Dr. Jill Biden invited her 23-year-old granddaughter, Finnegan Biden, to accompany her for Charles's coronation. For the occasion, the two wore coordinating blue and yellow monochromatic looks, which nodded to the colors of the Ukrainian flag.

Buckingham Palace previously announced that the coronation service would "reflect the Monarch’s role today and look towards the future, while being rooted in longstanding traditions and pageantry."

The historic occasion—which marks the first British coronation in 70 years, with the last occurring for Queen Elizabeth II in 1953—was extended with other related events throughout the weekend, including a Coronation Concert, a community event called the Big Lunch, and a volunteering event dubbed the Big Help Out.

The palace notes, "The Coronation of The King and The Queen Consort will be marked with events across the country and a concert at Windsor Castle. Their Majesties want to encourage people to spend the Coronation Weekend celebrating with friends, families and their communities."

The ceremony was intentionally designed to weave in the king's lifelong passion for the environment, with several decisions being made in the interest of sustainability. This includes the king and queen consort's reuse of their throne chairs and crowns, the invitations being printed on recycled paper, and thoughtfully crafted floral arrangements.

Originally published on Harper's BAZAAR US

Nobody, not Field Marshal Bernard Montgomery, not even Roger Moore in his 007 prime, ever wore a short-sleeved safari jacket with quite as much panache as Charles Philip Arthur George Mountbatten-Windsor.

Photographs of the youthful Prince of Wales during the Sixties and early Seventies show a slim young gun at the very peak of his sartorial swagger, touring Africa in a variety of raffish, cotton drill numbers — khaki, putty and petrol blue — that are all bellows pockets and epaulettes. Sleeves rolled up, belt buckle fastened elegantly carelessly, bush hat beaten up just so, leather field glasses case draped around his neck like a bandolier. Damn.

Here he is, sweaty, hot and handsome at the polo field, or Brideshead-ishly riding a bicycle around Cambridge in tweeds, or on naval duty in the Caribbean looking like he just stepped off the pages of a Ralph Lauren lookbook. Nothing he is wearing is particularly remarkable; there are no statement pieces or fashion-forward silhouettes and therefore little in the way of regrettable, what-was-I-thinking? sartorial missteps. He just looks effortlessly… correct.

Charles on the slopes at Klosters, Switzerland, 1978 Charles Wood/REX/Shutterstock

Now 74, the King remains the evergreen British style icon because he maintains a (substantial) wardrobe of clothes that never went out of fashion because they were never really in fashion in the first place.

Charles enjoying the Calgary Stampede, Alberta, Canada, 1977 Reginald Davis/REX/Shutterstock

"The brilliant thing about Charles is the way he never follows trends, but still manages to look so stylish," says Jeremy Hackett, of the gents outfitter, Hackett. "He kept wearing double-breasted suits when everyone else had switched to single. It was a brave, if unconscious, move but one that paid off because now he's made that double-breasted style his own."

Charles himself acknowledged his accidental status as a fashion icon at the launch party of London men's fashion week at St James's Palace in 2012. "I have lurched from being the best-dressed man to being the worst-dressed man," he said. "Meanwhile, I have gone on — like a stopped clock — and my time comes around every 25 years."

Prince Charles (as he then was) grabs a hamburger at Yellowknife on his visit Ottawa and the Northwest Territories, Canada, 1970 Reginald Davis/REX/Shutterstock

But let's not buy the monarch's blushing, hands-in-blazer-pockets modesty wholesale, shall we? As anyone who is seriously into clothes will know, to look as naturally born-to-it dashing and as louchely, marvellously, casually spiffing as Charles does, requires a finicky application and narcissistic vigour bordering on mania.

Young, stylish men of the 21st century are often described as being "details-obsessed". This usually alludes to a myopic fixation on fashionability and newness, certain designer labels, the right wash of denim for jeans, the box-freshness of trainers, an icky thing for hygiene and tonsorial vanity. King Charles' clothing obsession, meanwhile, is on an entirely different level.

Today, his aforementioned, un-modish suits are made (bespoke, of course) on Savile Row. He is said to have hundreds. His dinner jacket (he's had the same one for three decades; Charles was rocking "archive" before fashion bloggers invented the term) is cut, quite intentionally, like a slouchy cardigan. His neckties are almost comically narrow and tightly knotted to garrotte-like rigour. His morning suit is a slightly gauche grey-on-grey called a "pick-and-pick" fabric; the lapels of his morning suit waistcoat are accessorised with dandy-ish, white "slips" or "demis", which attach to the inside of the garment with buttons. He sometimes changes outfits five times a day and employs between four and five valets to maintain his garments to starchy, sponged and laundered perfection in a series of polished mahogany wardrobes. He loves a ticket pocket and a tab collar (with buttons) on his suit jackets that can be fastened in the event of a sudden hurricane.

A 24-year-old Charles dances to a calypso band at the Nassau Beach Hotel during the Bahamas Independence Celebrations, 1973 Reginald Davis/REX/Shutterstock

Charles practically invented eccentric, stealth-wealth dressing. Yes, the Lewis Hamiltons of this tawdry world might be slaves to fashion, splurging their money on designer-label kit, showy accessories and overpriced, faddish "luxury" tat. But even before the credit crunch kicked in, Charles was flying the flag for supreme quality, beautifully handcrafted investment pieces. This is a man who actually prefers his footwear scuffed but imbued with a deep patina of age and experience about the uppers; one particularly unusual and "totally indestructible" pair is made from leather salvaged from an 18th-century shipwreck in Plymouth Sound.

At a polo match in Nassau, Bahamas, 1973 Reginald Davis/REX/Shutterstock

Whether in Saudi Arabia, Texas or Afghanistan, he dresses like a local. One of his tweed coats belonged to George VI (verily, the royal mothballs must be Chernobyl-strength). He is rumoured — get this — to have his valet steam iron his shoelaces. That, my stylish friends, is what you call being "details-obsessed".

Certainly, Charles has definite advantages when it comes to his style. Clothes hang well on him because he inherited his father's rangy, wiry physicality. The fixation with collars and cufflinks was probably passed on by his clothes-mad great-uncle Edward, the Duke of Windsor, who set the tone for peacocking, aristo style during the Twenties and Thirties.

The then Prince of Wales is greeted by Chief Leo Pretty Youngman, left, and a medicine man of the Blackfoot tribe of Alberta on a tour of Canada, 1977 Getty Images

The labels-besotted Duke of Windsor would, no doubt, be delighted to see that the clobber department of the current Prince's Royal Warrants list reads like the transcript from one of P Diddy manservant Fonzworth Bentley's wet dreams. New suit? Charles can call on Anderson & Sheppard, Gieves & Hawkes, Ede & Ravenscroft or Benson & Clegg. Shoes are from Tricker's, Crockett & Jones and, of course, Lobb. Shirts are handmade by Turnbull & Asser. Outerwear? Burberry and Barbour. He goes north of the border — Johnstons of Elgin — for cashmere knitwear. To Lock & Co Hatters of St James's for his headwear.

At Guards Polo Club in Windsor, Charles wears jodhpurs with a sweatshirt from his service as a helicopter pilot aboard the commander carrier HMS Hermes, 1977 Getty Images

Charles is a blue blood Mr Benn with open access to a fancy dress shop run by Savile Row tailors and Bond Street outfitters… and, in many ways, the forerunner of the 21st-century menswear Instagrammer, with "likes" coming in the form of optimised levels of international trade and improved diplomatic relations. (All that travel isn't just for the photos.)

As the most powerful brand ambassador for Great British menswear, King Charles should be kept steamed, sponged, polished and wrapped in tissue paper… and aired in public as regularly as possible.

Originally published on Esquire UK