It's one of the most common questions in the royal history books.
No, not "Is Dr. Chris Brown really that attractive in real life?"
We're talking about the suspicions behind Prince Harry's paternity with long-running rumours Princess Diana's former love, James Hewitt, was Harry's father.
Shine, shine, shine guru Jackie Gillies asked, "Do you believe that Prince Harry is Charles' child?"
To which he swiftly responded, "Yes. Absolutely."
Needing a bit more, Jackie pushed, "It isn't the other...The orange hair?"
The royal butler remarked, "She didn't know James Hewitt when Harry was born. That's fact. Five years into the marriage, she had Harry. And she hadn't yet met James Hewitt. True."
To which the Real Housewive's star said, "Awesome! I believe you. Case closed!"
The question of Prince Harry's paternity has been rattling around for decades.
Last year, Princess Diana's lover shutdown the claims.
James Hewitt spoke to Melissa Doyle on Channel Seven's Sunday Night.
The TV host asked him straight out, "Are you Harry's father?"
To which the 59-year-old responded: "No I'm not."
When quizzed about why the rumour refuses to go away, the former cavalry officer explained: "It sells papers. It's worse for [Harry], probably, poor chap."
Watch the interview below
Princess Diana met the handsome red-headed army man in 1986.
That was two years after Prince Harry's birth in 1984.
James was hired to be her horse riding instructor.
It was during this period that Prince Charles' affair with his now wife, Camilla Parker-Bowles, was also said to have heated up.
"It's a gradual period and then, you know, suddenly you can't get enough of each other or see each other as much as you want," he mused.