Marchioness of Bath Emma Thynn (L) and British model Lady Kitty Spencer (R) pose upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

British model Lady Kitty Spencer poses upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

Norwegian pole vaulter, Embla Matilde Njerve poses upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

Norwegian pole vaulter, Embla Matilde Njerve poses upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

Norwegian pole vaulter, Embla Matilde Njerve poses upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

British milliner Stephen Jones poses upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

US actress Natasha Lyonne (L) and Talent manager Elena Ora (R) pose upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)

Writer Shaun Usher and British film producer Adam Ackland pose upon arrival to attend The British Museum Ball 2026 in London on October 17, 2026. (Photo by CARLOS JASSO / AFP via Getty Images)