See all of Duchess Kate's best wedding guest looks

With the wedding of Princess Eugenie and Jack Brooksbank happening this Friday, we can't wait to watch all of the royal festivities unfold. 

From the untraditional cake to the roles that Prince George and Princess Charlotte will play, a lot of details surrounding the big day have already been revealed. But one thing that we will have to wait to see until Friday morning is what Duchess Kate will be wearing!

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Duchess Kate's wedding guest looks
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Duchess Kate's wedding guest looks
Kate Middleton, Prince William'S Girlfriend Arrives At The Society Wedding Of Hugh Van Cutsem Junior To Rose Astor At Burford Parish Church In Burford. (Photo by Mark Cuthbert/UK Press via Getty Images)
Prince William's girlfriend Kate Middleton at the wedding of Laura Parker Bowles and Harry Lopes at St Cyriac's Church in Lacock, Wiltshire. (Photo by Chris Ison - PA Images/PA Images via Getty Images)
Kate Middleton Arrives At The Wedding Of Lady Rose Windsor, Youngest Daughter Of The Duke & Duchess Of Gloucester Who Marries George Gilman At The Queens Chapel, London.. (Photo by Antony Jones/UK Press via Getty Images)
Kate Middleton Attends The Wedding Of Nicholas Van Cutsem And Alice Hadden-Paton At The Guards Chapel, Wellington Barracks In London. (Photo by Mark Cuthbert/UK Press via Getty Images)
Prince William and Kate Middleton leave the wedding of their friends Harry Mead and Rosie Bradford in the village of Northleach, Gloucestershire. (Photo by Chris Ison/PA Images via Getty Images)
LAMBOURN, UNITED KINGDOM - JUNE 11: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends the wedding of Sam Waley-Cohen and Annabel Ballin at St. Michael and All Angels church on June 11, 2011 in Lambourn, England. (Photo by Indigo/Getty Images)
EDINBURGH, UNITED KINGDOM - JULY 30: Prince Harry and Catherine, Duchess of Cambridge attend the wedding of Zara Phillips and Mike Tindall at Canongate Kirk on July 30, 2011 in Edinburgh, Scotland. (Photo by Samir Hussein/WireImage)
GRANTHAM, UNITED KINGDOM - JUNE 09: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends the wedding of Emily McCorquodale and James Hutt at The Church of St Andrew and St Mary, Stoke Rochford on June 9, 2012 in Grantham, England. (Photo by Indigo/Getty Images)
AROSA, SWITZERLAND - MARCH 02: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the wedding of Laura Bechtolsheimer and Mark Tomlinson at the Protestant Church on March 2, 2013 in Arosa, Switzerland. (Photo by Indigo/Getty Images)
OXFORD, UNITED KINGDOM - MAY 11: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge, accompanied by her police protection officer, attends the wedding of William van Cutsem and Rosie Ruck Keene at the church of St Mary the Virgin in Ewelme on May 11, 2013 near Oxford, England. (Photo by Max Mumby/Indigo/Getty Images)
CHIPPENHAM, UNITED KINGDOM - MARCH 29: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Prince Harry and Catherine, Duchess of Cambridge attend the wedding of Lucy Meade and Charlie Budgett at the church of St Mary the Virgin, Marshfield on March 29, 2014 in Chippenham, England. (Photo by Max Mumby/Indigo/Getty Images)
ENGLEFIELD GREEN, UNITED KINGDOM - MAY 20: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Max Mumby/Indigo/Getty Images)
TOPSHOT - Princess Charlotte and Britain's Catherine, Duchess of Cambridge leave the wedding ceremony of Britain's Prince Harry, Duke of Sussex and US actress Meghan Markle at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Ben STANSALL / POOL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
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And since Kate is one of our favorite style icons, we are looking back at all of her best wedding guest outfits from even her pre-duchess days. From the stunning blue coat that she wore to the wedding of Lucy Meade and Charlie Budgett in 2014 to the dusty pink draped dress that she wore at her sister Pippa's 2017 nuptials to the cream ensemble that she wore in May to Prince Harry and Duchess Meghan's wedding, it's hard to pick a favorite look of hers. 

Scroll through the gallery above to see Kate's best wedding guest looks and check back here on Friday to see what she wears to Princess Eugenie's wedding!

See photos of the happy couple below:

47 PHOTOS
Princess Eugenie and Jack Brooksbank together
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Princess Eugenie and Jack Brooksbank together
LONDON, ENGLAND - JUNE 30: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME. MANDATORY CREDIT PHOTO BY DAVE M. BENETT/GETTY IMAGES REQUIRED) Princess Eugenie of York (R) and Jack Brooksbank attend The Elephant Parade auction in aid of The Elephant Family at Royal Hospital Chelsea on June 30, 2010 in London, England. (Photo by Dave M. Benett/Getty Images)
LONDON, ENGLAND - JUNE 30: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME. MANDATORY CREDIT PHOTO BY DAVE M. BENETT/GETTY IMAGES REQUIRED) Princess Eugenie of York (R) and Jack Brooksbank attend The Elephant Parade auction in aid of The Elephant Family at Royal Hospital Chelsea on June 30, 2010 in London, England. (Photo by Dave M. Benett/Getty Images)
ASCOT, UNITED KINGDOM - JUNE 18: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Princess Eugenie and Jack Brooksbank attend day five of Royal Ascot at Ascot Racecourse on June 18, 2011 in Ascot, United Kingdom. (Photo by Indigo/Getty Images)
Princess Eugenie On The Final Day Of Royal Ascot, Where She Presented The Trophy For The 'Chesham Stakes', Accompanied By Her Boyfriend Jack Brooksbank. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - OCTOBER 22: Jack Brooksbank and Princess Eugenie of York depart the Dorsia Club on October 22, 2011 in London, England. (Photo by Mark Milan/GC Images)
LONDON, ENGLAND - OCTOBER 22: Jack Brooksbank and Princess Eugenie of York depart the Dorsia Club on October 22, 2011 in London, England. (Photo by Mark Milan/GC Images)
LONDON, UNITED KINGDOM - JULY 18: Princess Eugenie and Jack Brooksbank attend the European premiere special screening of 'The Dark Knight Rises' at BFI IMAX on July 18, 2012 in London, England. (Photo by Stuart Wilson/Getty Images)
LONDON, ENGLAND - SEPTEMBER 03: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME. MANDATORY CREDIT PHOTO BY DAVE M. BENETT/WIREIMAGE REQUIRED) Jack Brooksbank (L) and Princess Eugenie of York attend the second annual 'Freddie For A Day' event in memory of Queen's late frontman Freddie Mercury, at The Savoy Hotel on September 3, 2012 in London, England. The evening of comedy and music marks what would have been Freddie Mercury's 66th birthday in aid of The Mercury Phoenix Trust. (Photo by Dave M. Benett/WireImage)
LONDON, ENGLAND - SEPTEMBER 03: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME. MANDATORY CREDIT PHOTO BY DAVE M. BENETT/WIREIMAGE REQUIRED) Princess Eugenie of York (L) and Jack Brooksbank attend the second annual 'Freddie For A Day' event in memory of Queen's late frontman Freddie Mercury, at The Savoy Hotel on September 3, 2012 in London, England. The evening of comedy and music marks what would have been Freddie Mercury's 66th birthday in aid of The Mercury Phoenix Trust. (Photo by Dave M. Benett/WireImage)
LONDON, ENGLAND - SEPTEMBER 03: R-L Jack Brooksbank and Princess Eugenie of York attend the second annual 'Freddie For A Day' event in memory of Queen's late frontman Freddie Mercury, at The Savoy Hotel on September 3, 2012 in London, England. (Photo by Dave J Hogan/Getty Images) The evening of comedy and music marks what would have been Freddie Mercury's 66th birthday in aid of The Mercury Phoenix Trust. (Photo by Dave J Hogan/Getty Images)
LONDON, UNITED KINGDOM - OCTOBER 18: Princess Eugenie and Jack Brooksbank sightings on October 18, 2012 in London, England. (Photo by Simon James/FilmMagic)
LONDON, UNITED KINGDOM - OCTOBER 18: Princess Eugenie and Jack Brooksbank sightings on October 18, 2012 in London, England. (Photo by Simon James/FilmMagic)
LONDON, UNITED KINGDOM - OCTOBER 25: Jack Brooksbank and Princess Eugenie sighting leaving Loulou's Private Club on October 25, 2012 in London, England. (Photo by Alan Chapman/FilmMagic)
LONDON, UNITED KINGDOM - MARCH 19: Jack Brooksbank and Princess Eugenie of York at the Downtown Mayfair restaurant for Heather Kerzner's birthday celebration on March 19, 2013 in London, England. (Photo by Mark Robert Milan/FilmMagic)
LONDON,UNITED KINGDOM - FEBRUARY 5: Princess Eugenie and Jack Brooksbank are seen on February 05, 2013 in London, United Kingdom. (Photo by Bauer-Griffin/GC Images)
CIRENCESTER, UNITED KINGDOM - JUNE 08: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Princess Eugenie of York and Jack Brooksbank attend the wedding of Lady Natasha Rufus Isaacs and Rupert Finch at the church of St John the Baptist on June 8, 2013 in Cirencester, England. (Photo by Max Mumby/Indigo/Getty Images)
ALNWICK, UNITED KINGDOM - JUNE 22: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Jack Brooksbank, Cressida Bonas, Princess Eugenie, Dave Clark and Princess Beatrice attend the wedding of Lady Melissa Percy and Thomas Van Straubenzee at St Michael's Church on June 22, 2013 in Alnwick, England. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, ENGLAND - JULY 02: (EMBARGOED FOR PUBLICATION IN UK TABLOID NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME. MANDATORY CREDIT PHOTO BY DAVE M. BENETT/GETTY IMAGES REQUIRED) Princess Eugenie of York (L) and Jack Brooksbank attend The Masterpiece Midsummer Party in aid of Marie Curie Cancer Care, hosted by Heather Kerzner, at The Royal Hospital Chelsea on July 2, 2013 in London, England. Marie Curie Nurses provide free end of life care to patients with terminal illness in their own homes or in one of its nine hospices. (Photo by Dave M. Benett/Getty Images for Marie Curie Cancer Care)
LONDON, ENGLAND - SEPTEMBER 21: Jack Brooksbank and Princess Eugenie arrive at The Boodles Boxing Ball at The Grosvenor House Hotel on September 21, 2013 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 21: In this handout image provided by the Boodles Boxing Ball Committee, Jack Brooksbank and Princess Eugenie of York pose at the Boodles Boxing Ball 2013 on September 21, 2013 at the Grosvenor House in London,England. (Photo by Dominic O'Neill/Boodles Boxing Ball Committee via Getty Images)
ASCOT, ENGLAND - JUNE 21: Princess Eugenie and Jack Brooksbank attend Day 5 of Royal Ascot at Ascot Racecourse on June 21, 2014 in Ascot, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, UNITED KINGDOM - JULY 01: Jack Brooksbank and Princess Eugenie of York at the Groucho club on July 1, 2014 in London, England. (Photo by Mark Robert Milan/GC Images)
***EXCLUSIVE*** GLOUCESTERSHIRE, UNITED KINGDOM JUNE 13: Princess Eugenie of York and boyfriend Jack Brooksbank arrive at the wedding of Charlie Colburn and Charlie Driver (Minnie Driver's brother) at St Mary's Church in Bibury on June 13, 2015 in Gloucestershire, England. PHOTOGRAPH BY Jules Annan / Barcroft Media (Photo credit should read Jules Annan / Barcroft Media via GC Images)
ASCOT, ENGLAND - JUNE 19: Jack Brooksbank and Princess Eugenie on day 4 of Royal Ascot at Ascot Racecourse on June 19, 2015 in Ascot, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
CHICHESTER, ENGLAND - JULY 30: Princess Eugenie of York and Jack Brooksbank attends Glorious Goodwood at Goodwood on July 30, 2015 in Chichester, England. (Photo by Danny Martindale/WireImage)
LONDON, ENGLAND - JULY 03: Jack Brooksbank (L) and Princess Eugenie of York attend Tracey Emin's birthday party at Mark's Club on July 3, 2014 in London, England. (Photo by David M. Benett/Getty Images)
CHICHESTER, ENGLAND - JULY 30: Princess Eugenie and Jack Brooksbank (L) attend day three of the Qatar Goodwood Festival at Goodwood Racecourse on July 30, 2015 in Chichester, England. (Photo by Tristan Fewings/Getty Images for Qatar Goodwood Festival)
LONDON, ENGLAND - JANUARY 26: Princess Eugenie of York (R) and Jack Brooksbank attend the launch of GP Nutrition Supplements, a collection of five premium nutritional programmes perfect for modern living, at Annabels on January 26, 2016 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for Gabriela Peacock)
LONDON, ENGLAND - MAY 18: Princess Eugenie and Jack Brooksbank leave 34 Restaurant at 34 Grosvenor Squareon May 18, 2016 in London, England. (Photo by Antony Jones/GC Images)
LONDON, ENGLAND - MAY 23: (EDITORS NOTE: Retransmission of #533781394 with alternate crop.) Princess Eugenie and Jack Brooksbank attend the Chelsea Flower Show press day at Royal Hospital Chelsea on May 23, 2016 in London, England. The show, which has run annually since 1913 in the grounds of the Royal Hospital Chelsea, is open to the public from 24-28 May. (Photo by Heathcliff O'Malley - WP Pool/Getty Images)
LONDON, ENGLAND - OCTOBER 25: (L-R) Jack Brooksbank and Princess Eugenie of York attends the opening night of 'Conservation Couture: The Animal Ball Collection' in aid of Elephant Family and supported by Swarovski at The V&A on October 25, 2016 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)
LONDON, ENGLAND - JANUARY 12: Jack Brooksbank (L) and Princess Eugenie of York attend the launch of Bunga Bunga in Covent Garden on January 12, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Eugenie and Jack Brooksbank attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
LONDON, ENGLAND - MAY 31: Jack Brooksbank and Princess Eugenie attend the 50th anniversary of The Beatles SGT Pepper Album at Abbey Road Studios for End The Silence and Hope&Homes for Children on May 31, 2017 in London, England. (Photo by David M Benett/Dave Benett/Getty Images for Hope and Homes for Children)
LONDON, ENGLAND - JUNE 21: Jack Brooksbank and Princess Eugenie of York attend the V&A summer party at The V&A on June 21, 2017 in London, England. (Photo by Chris Jackson/Getty Images)
ASCOT, ENGLAND - JUNE 23: Princess Eugenie and Jack Brooksbank attend Royal Ascot 2017 at Ascot Racecourse on June 23, 2017 in Ascot, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
ASCOT, ENGLAND - JUNE 23: Princess Eugenie and Jack Brooksbank attend the fourth day of Royal Ascot 2017 at Ascot Racecourse on June 23, 2017 in Ascot, England. (Photo by Julian Parker/UK Press via Getty Images)
Jack Brooksbank and Princess Eugenie of York attending the Serpentine Summer Party 2017, presented by the Serpentine and Chanel, held at the Serpentine Galleries Pavilion, in Kensington Gardens, London. (Photo by Ian West/PA Images via Getty Images)
NEW YORK, NY - OCTOBER 27: Jack Brooksbank (R) and Princess Eugenie of York attend the Brooklyn Nets Vs New York Knicks game at Madison Square Garden on October 27, 2017 in New York City. (Photo by James Devaney/WireImage)
Princess Eugenie and Jack Brooksbank in the Picture Gallery at Buckingham Palace in London after they announced their engagement. Princess Eugenie wears a dress by Erdem, shoes by Jimmy Choo and a ring containing a padparadscha sapphire surrounded by diamonds. (Photo by Jonathan Brady/PA Images via Getty Images)
NEW YORK, NY - OCTOBER 27: Jack Brooksbank (R) and Princess Eugenie of York attend the Brooklyn Nets Vs New York Knicks game at Madison Square Garden on October 27, 2017 in New York City. (Photo by James Devaney/WireImage)
WINDSOR, ENGLAND - APRIL 01: Princess Eugenie and Jack Brooksbank attend an Easter Service at St George's Chapel on April 1, 2018 in Windsor, England. (Photo by Karwai Tang/WireImage)
WINDSOR, ENGLAND - APRIL 1: Jack Brooksbank, Princess Eugenie, Princess Anne, Princess Royal, Princess Beatrice and Vice Admiral Sir Timothy Laurence arrive for the Easter Mattins Service at St. George's Chapel at Windsor Castle on April 1, 2018 in Windsor, England. (Photo by Tolga Akmen - WPA Pool/Getty Images)
WINDSOR, ENGLAND - APRIL 01: (L-R) Zara Tindall, Jack Brooksbank, Princess Eugenie and Princess Beatrice attend an Easter Service at St George's Chapel on April 1, 2018 in Windsor, England. (Photo by Karwai Tang/WireImage)
WINDSOR, UNITED KINGDOM - APRIL 01: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Jack Brooksbank and Princess Eugenie attend the traditional Easter Sunday church service at St George's Chapel, Windsor Castle on April 1, 2018 in Windsor, England. (Photo by Max Mumby/Indigo/Getty Images)
FRENSHAM, UNITED KINGDOM - AUGUST 04: Princess Eugenie of York and Jack Brooksbank attend the wedding of Daisy Jenks and Charlie Van Straubenzee at Saint Mary The Virgin Church on August 4, 2018 in Frensham, United Kingdom. Prince Harry attended the same prep school as Charlie van Straubenzee and have been good friends ever since. (Photo by Karwai Tang/WireImage)
Princess Eugenie of York and Jack Brooksbank attending the Serpentine Summer Party 2018 held at the Serpentine Galleries Pavilion, Kensington Gardens, London. (Photo by Ian West/PA Images via Getty Images)
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