Princess Diana's 'revenge dress' and 16 other celebrity outfits the world will never forget

While her wedding dress was undoubtedly headline-worthy, it was the off-the-shoulder dress Princess Diana wore shortly after her divorce that really clocked up attention. She wore the form-fitting black silk cocktail dress to a Vanity Fair party in 1994, the very same evening that Prince Charles publicly confessed to his affair with Camilla Parker-Bowles in the documentary, Charles: The Private Man, The Public Role, and from then on it became known as the 'revenge dress'. The Christina Stambolian gown has recently been attracting attention after Elizabeth Debicki - who plays Diana in season five of The Crown - was photographed wearing a replica of the famous number on set, reportedly prompting a 400% spike in online searches for 'revenge dress', as revealed by Design Bundles. (WireImage)

Who could forget how incredible JLo looked in this iconic Versace dress with plunging neckline from the 1999 Grammy Awards? So good in fact that she managed to shut down Milan Fashion Week wearing a reimagined version of the green gown to mark the 20th anniversary of the dress's original outing in 2019. (ImageDirect)

When a then 29-year-old rocked up to the premiere of Four Weddings and a Funeral on the arm of the film's lead Hugh Grant, in a slinky black dress held together with safety pins, the world sat up and took notice. The Versace gown has since become so influential that it's now simply known as 'THAT dress' and has recently been voted the greatest red carpet gown of all time. (Hulton Archive/Getty Images)

While the Brits 1997 was a huge night for the Spice Girls, having been nominated for five awards, all anyone could really talk about afterwards was Geri Halliwell, aka Ginger Spice's now iconic Union Jack dress, which was apparently made from one of Geri's mother's tea towels. (Hulton Archive/Getty Images)

Typically, the Oscars delivers a swathe of glamorous gowns, but in 1998 Cher certainly shook things up when she walked the red carpet in a look straight out of Vegas. The ab-revealing, two-piece Bob Mackie creation came complete with an oversized feather headdress which elevated the look to an entirely new level. The singer and actor has since revealed she had some minor regrets about the risque look: 'I knew some people in the Academy didn’t think that I was a serious actress,' she told Vogue. 'I always felt a bit sad that I presented Don Ameche with his Best Supporting Actor Award in that outfit. It seemed to make him a little nervous.' (Ron Galella Collection via Getty Images)

Kim Kardashian is pretty practiced in providing the public with memorable fashion moments, but the ultimate 'what the...?' look has to be the outfit she wore to make her Met Gala debut. Pregnant with her first child, North, at the time, the reality TV star sure made a statement in this Givenchy gown with in built gloves, so much so that it spawned a now infamous couch meme. (Getty Images)

In 2015, Cyrus hosted the MTV Video Music Awards and made her mark by opting to wear 11 different looks. While many were stand out, this strappy, silver number from Versace definitely took the 'most memorable' crown. (Getty Images)

Also up there with fashion moments we'll never forget is CeeLo Green at the 2017 Grammys. The Crazy singer decided to rock up dressed as his alter ego, Gnarly Davidson, but actually looked more like a cross between Star Wars' C-3P0 and a Ferrero Rocher chocolate. Sorry CeeLo! (Getty Images)

Outrageous outfits are practically the official dress code for the annual Met Gala, but Katy Perry's getup for the 2018 do was still up there as one of the most dramatic entrances this decade. The singer accessorised her gold minidress and thigh-high boots with massive wings crafted from real feathers by the designers at Versace. (GC Images)

Billy Porter made a more than memorable entrance at the 2019 Oscars when he introduced the world to the never-seen-before tuxedo gown. The design, by Christian Siriano, featured a black bow tie and a full ballgown skirt for maximum impact. Porter later told Vogue that he and Siriano wanted 'to play between the masculine and the feminine'.(Getty Images)

The internet lost it when Britney Spears and Justin Timberlake rocked up to the 2001 American Music Awards hand in hand in matching denim ensembles. Sadly for Spears and Timberlake, however, the couple that dresses together doesn't necessarily stay together, but that doesn't mean Timberlake is ruling out the return of a toned down version of the denim-on-denim look. 'If you wear denim-on-denim, it will get documented. You know what, I don't think I could even bring that back,' he told the Australian talk show, The Project. 'I'm going to go out on a limb and say if it's worn properly, denim-on-denim could be [brought back].' (WireImage)

Lady Gaga scooped the prize for one of the most out-there looks ever to be worn on the red carpet when she covered herself in a dress made of raw red meat at the 2010 MTV VMAs. (Getty Images)

To attend the 2012 Oscars, Angelina Jolie donned a glamorous, black Versace gown, which actually spawned its own iconic leg-pop pose. The sleek strapless dress featured a deep, thigh-high slit that made the actor's unusual leg stance go down in red carpet history. (WireImage)

Madonna first debuted her now infamous cone bra at a concert in Japan in 1990 after something of a furore over her single Like a Prayer. Since then the Jean Paul Gaultier outfit has become the most recognisable look associated with the singer. (Getty Images)

Nothing to see here just Rihanna rocking up to the Met Gala dressed as the pope in jewel-encrusted Margiela. (Getty Images)

Will anyone ever forget the time Bjork turned up to the Oscars wearing swan dress? While it may seem tame compared to today's out-there fashion offerings, the frock has since been viewed as one of the most recognised red carpet dresses of all time. So much so that it was interpreted by Valentino on the runway in 2014 and also featured at the Museum of Modern Art in 2015. (Getty Images)

Justin Timberlake and Britney Spears weren't the only celebrity couple to hit the red carpet in matchy, matchy outfits, the Beckhams were fans too. While the couple chose to twin on several occasions, their most memorable had to be the all over matching leather look they donned to attend a party in London in 1999. Though their signature style is far less cheesy these days, Victoria Beckham recently revealed why she chose to dress the same as her beau and it seems they were really just having a laugh. 'It just seemed like a really good idea at the time,' she told The Tonight Show with Jimmy Fallon. 'It really did. I think there was a naïveté then, we didn't know about fashion.' (UK Press via Getty Images)