Following an in depth interview with Piers Morgan on his new CNN show, Oprah Winfrey has taken to her own series, The Oprah Winfrey Show, to reveal she has a secret half-sister.
The chat-show queen announced her family secret as she introduced her 47-year-old sister Patricia in a family reunion set to air in the US on Tuesday night.
The 56-year-old told her audience: "Yes, it is true. It is true that my mother is also Patricia's birth mother. That means Patricia is my half sister who I never knew existed."
Oprah's mother gave Patricia up for adoption shortly after her birth and the two sisters met for the first time last November.
Piers Morgan took to Twitter to air his disappointment that she didn't reveal her secret on his show.
The former newspaper editor tweeted: "Damn and blast, you're all absolutely right, I should have asked Oprah: 'Got any secret half-sisters called Pat we don't know about?'"