William is said to be "utterly aghast" at his younger brother's decision to take part in a prime-time interview with TV talk show legend Oprah Winfrey.
But, before this "intimate" conversation between the Duke and Duchess of Sussex and the famous US presenter aired, Harry made a surprise appearance on The Late Late Show.
The US programme is currently hosted by British comic James Corden, a long time friend of Harry's, and he chose to take the rebellious royal for a bus tour around LA as they chatted.
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