Madonna upset by brother's memoir

Rex Features

Madonna is reportedly "very upset" that her brother has written a tell-all memoir about her life.

TV chef Christopher Ciccone signed a book deal with Simon & Schuster to publish Life With My Sister Madonna without her approval.

He is also rumoured to be planning a reality TV show detailing his experience as the popstar's sibling.

Ciccone, who is now estranged from Madonna, told GMTV: "We do still email but we haven't spoken [since it was published].

"I did send her an email a week before it came out. She was very upset and expressed it to our dad - but not to me. I did send an email saying 'I love you and I would never do anything to intentionally hurt you'."

However, he defended his decision to publish the memoir, saying: "I had to write it. No matter how you look at it, it's about me and my perspective.

"I don't consider it a betrayal at all. It's an honourable representation of our lives... I hope we can be friends again."