Kate Middleton is a total stunner in L.K. Bennett dress in unseen photos

On Tuesday, the Duke and Duchess of Cambridge shared news of a secret event that was hosted at their Kensington Palace home earlier this month.

The parents-of-three shared photos of the private event to Instagram on Tuesday, which was held to honor Radio 1's Teen Heroes of 2019 and was attended by popstar Camila Cabello and BBC Radio 1 DJs Clara Amfo and Greg James.

The 10th annual awards help recognize some of the most inspirational teens in the United Kingdom, whether they're advocating for social issues or fighting their own medical adversities. This is the fourth year in a row that the inspirational honorees have been invited to the palace. 

Of course, the Duchess of Cambridge stunned for the event, opting for an L.K. Bennett Coral Print Midi Dress for the occasion. The $645 silk dress is still available to shop! 

"Hearing the incredible things these Teen Heroes have done is so inspirational," Cabello said about the event. "Their passion and dedication to help others is amazing and they really blew me away."

The post on Tuesday comes just a few days after the couple wrapped up their five-day royal tour of Pakistan. 

See more of their visit in the slideshow below. 

26 PHOTOS
Duchess Kate visits Badshahi mosque
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Duchess Kate visits Badshahi mosque
LAHORE, PAKISTAN - OCTOBER 17: Catherine, Duchess of Cambridge arrives at the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Catherine, Duchess of Cambridge visits the Badshahi Mosque with Prince William, Duke of Cambridge in Lahore on October 17, 2019 in Lahore, Pakistan. The Badshahi Mosque is the most iconic Islamic site in Lahore, set in the heart of the Walled City. (Photo by Karwai Tang/WireImage)
LAHORE, PAKISTAN - OCTOBER 17: (EDITORS NOTE: Retransmission with alternate crop.) Catherine, Duchess of Cambridge arrives at the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Catherine, Duchess of Cambridge arrives at the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge visit the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Catherine, Duchess of Cambridge arrives at the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge arrive for a Interfaith Meeting at Badshahi Mosque on October 17, 2019 in Lahore, Pakistan. Their Royal Highnesses The Duke and Duchess of Cambridge are on a visit of Pakistan between 14-18th October at the request of the Foreign and Commonwealth Office. (Photo by Samir Hussein/WireImage)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge arrive for a Interfaith Meeting at Badshahi Mosque on October 17, 2019 in Lahore, Pakistan. Their Royal Highnesses The Duke and Duchess of Cambridge are on a visit of Pakistan between 14-18th October at the request of the Foreign and Commonwealth Office. (Photo by Samir Hussein/WireImage)
LAHORE, PAKISTAN - OCTOBER 17: Catherine, Duchess of Cambridge arrives for a Interfaith Meeting at Badshahi Mosque on October 17, 2019 in Lahore, Pakistan. Their Royal Highnesses The Duke and Duchess of Cambridge are on a visit of Pakistan between 14-18th October at the request of the Foreign and Commonwealth Office. (Photo by Samir Hussein/WireImage)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge arrive for a Interfaith Meeting at Badshahi Mosque on October 17, 2019 in Lahore, Pakistan. Their Royal Highnesses The Duke and Duchess of Cambridge are on a visit of Pakistan between 14-18th October at the request of the Foreign and Commonwealth Office. (Photo by Samir Hussein/WireImage)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
Britain's Prince William (L), Duke of Cambridge and his wife Britain's Catherine, Duchess of Cambridge visit the historical Badshahi mosque in Lahore on October 17, 2019. (Photo by AAMIR QURESHI / AFP) (Photo by AAMIR QURESHI/AFP via Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Catherine, Duchess of Cambridge (R) and a faith leader arrive at the Badshahi Mosque within the Walled City during day four of their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Chris Jackson/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Catherine, Duchess of Cambridge visits Badshahi Mosque during their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Owen Humphreys - Pool/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit Badshahi Mosque during their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Owen Humphreys - Pool/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit Badshahi Mosque during their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Owen Humphreys - Pool/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit Badshahi Mosque during their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Owen Humphreys - Pool/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit Badshahi Mosque during their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Owen Humphreys - Pool/Getty Images)
LAHORE, PAKISTAN - OCTOBER 17: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge visit Badshahi Mosque during their royal tour of Pakistan on October 17, 2019 in Lahore, Pakistan. (Photo by Owen Humphreys - Pool/Getty Images)
Britain's Prince William (2R), Duke of Cambridge and his wife Britain's Catherine (2L), Duchess of Cambridge visit with Grand Imam, Abdul Khbeer Azad (R), at the historical Badshahi mosque in Lahore on October 17, 2019. (Photo by AAMIR QURESHI / AFP) (Photo by AAMIR QURESHI/AFP via Getty Images)
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