A comedian has said he was told by Prince Harry: "You don't sound like a black chap."
The young royal was said to have made the comment to Stephen K Amos after the Prince of Wales's 60th birthday celebration, We Are Most Amused, last November.
Last month, Harry apologised for using the term "Paki" about a member of his platoon.
Speaking on Five's The Wright Stuff yesterday, Amos said: "I'll let you into a secret.
"When I finished the show, in the line-up I was saying 'Hello, hello'.
"Prince Harry comes up to me and goes 'Oh, tell me, amusing, but you don't sound like a black chap'."
Londoner Amos continued: "I wanted to say (in a West Indian accent) 'How am I supposed to sound?"'
Amos said he hoped the comment was in jest and that he thought Harry might have been trying to make banter with him.
A spokeswoman for the Prince would not confirm whether or not the remarks had been made because private conversations are not commented upon.
A previous statement from St James's Palace about the "Paki" comment said it was made three years ago as a nickname about a friend and without any malice.
Prime Minister Gordon Brown has also said he believed the public would give Harry the "benefit of the doubt" over the furore it caused.
The Prince's apology last month follows one he was forced to make in 2005 for wearing a swastika armband to a party, which offended many Jewish people.
Former Commission for Racial Equality chairman Lord (Herman) Ouseley told the Daily Mirror: "It is very sad that Prince Harry thinks black people all talk in the same way.
"It just goes to show how ill-educated members of the upper classes can be."