Rob Lowe has claimed Prince Harry has grown a ponytail

Speaking to James Corden on 'The Late Late Show, Rob said: "I just ran into your countryman, the English treasure, Prince Harry, at the stoplight 10 minutes ago.

"'It was very, very quick — don't totally quote me on it — but it looked like he's wearing a ponytail.

"I'm just saying. It looked to me as a casual observer that his hair had grown very long and was pulled back very tightly by what I can only assume was a ponytail."

But the British presenter - who was a guest at Harry and Meghan's wedding in 2018 - was unconvinced by Rob's tale and admitted he thought his guest had confused the prince with someone else.

He replied: "A ponytail? I'm certain that isn't true.

"Do you know what I think's happened? I think you didn't see Prince Harry."

However, the 56-year-old actor insisted he was telling the truth - because he followed Harry home to make sure he really had seen the prince.

He said: "It was him because I have to say... I followed him to the house to see if the car went in.

"He lives about a mile from me. He's been very reclusive. Seeing him in the neighbourhood is like seeing the Loch Ness Monster, and I finally saw him. I finally saw him driving his car."

Harry - who has 20-month-old son Archie with his wife - was seen in a promotional video for Netflix in early December, in which he had the same short hairstyle he's worn for years.