The 'Fab Four' feature alongside one another in a three-minute video that also stars actress Gillian Anderson and presenter Davina McCall.
The British talk show host launched a tirade against the royal couple's statement against the press.
The late Princess of Wales famously walked the then-partially-cleared Angolan minefield site 22 years ago in 1997.
A picture of the Duke and Duchess of Sussex, 35 and 38 respectively, kissing on the lips has quickly gone viral on social media.
Meghan praised "amazing dad" Prince Harry and revealed an intimate pic of him admiring his infant son.
The Duke and Duchess of Sussex have been criticised for their carbon emissions during recent private jet trips.
The duchess thought it would be "boastful" to appear on the cover herself, and instead chose "world-leading women" like Jane Fonda and Jameela Jamil to be on it.
A look back at Princess Diana's most iconic outfits. See the blue skirt suit she wore to announce her engagement to Prince Charles and her fairytale wedding dress.
Markle alternately gazed at her son and adjusted her hair during their first public photo op. What did her body language mean?
People on Twitter are reacting to the news of baby Sussex's name: Archie Harrison Mountbatten-Windsor.
Meghan Markle is glowing in a custom Grace Wales Bonner dress as she and Prince Harry debuted their two-day old son on Wednesday morning.