ET breaks down the most memorable moments from the couple's first post-engagement chat with BBC News.
The pop star will join panelists Sean “Diddy” Combs, DJ Khaled and Meghan Trainor.
The royal popped the question earlier this month.
Prince Harry has no doubt that his late mother, Princess Diana, would have loved his fiancee, Meghan Markle.
The 36-year-old actress said the engagement was "so sweet and natural and very romantic."
"Wonderful news, I wish you both a lifetime of happiness."
The two gave their first post-engagement interview with Mishal Husain of BBC News on Monday.
Meghan Markle will soon have a new royal title!
The 'Suits' star and Prince Harry announced their engagement on Monday but she revealed what she wants in a wedding gown long before the proposal.
Prince Harry didn't just pick out his fiancee's engagement ring, he designed it!
James Cameron is revealing he got into a physical altercation with Harvey Weinstein on one of the biggest nights of the director's careers.
The 33-year-old Prince of Wales and 36-year-old 'Suits' star are set to tie the knot! We're looking back at a timeline of their royal romance.
The couple confirmed their engagement on Monday in a statement.
Barrymore posted lengthy captions about the ‘spirit of family.’
