Cissy Houston Writing Book on Whitney Houston

Cissy Houston Interview - P 2012

Cissy Houston Interview - P 2012

The late singer's mother signs with HarperCollins to pen the "unabridged and unbelievable story" of her daughter.

Ending months of speculation, Cissy Houston has officially announced she is writing a book about her late superstar daughter, Whitney Houston.

The Houston family matriarch signed a deal with HarperCollins, which promised the "unabridged and unbelievable story" of the talented and troubled singer, whose once-blazing career stumbled while she grappled with drug addiction and a tumultuous marriage to Bobby Brown.

"When I lost my daughter Nippy, the world lost one of the most beautiful voices and an extraordinarily beautiful and charitable woman," Cissy Houston said Monday in a statement via The Associated Press.

VIDEO: Cissy Houston Slams Media for Whitney Coverage

"In sharing our story in this book, I hope to give her fans something to treasure, the way we all treasured Whitney," she said. "We are still receiving thousands of letters each day from her fans, and I hope reading this book will provide a deeper understanding into my daughter's true story," continued Houston.

The book will be published in February; financial terms weren't disclosed. Steve Fisher, VP of literary at APA, brokered the deal with HarperCollins.

In April, reports emerged that she had been meeting with publishers about a book that would tell the so-called true tale of Houston's life.

The iconic "I Will Always Love You" singer was found submerged in a bathtub at the Beverly Hilton on Feb. 11, just hours before she was scheduled to appear at Clive Davis’ annual Pre-Grammy gala. The death was ruled to be an accidental drowning, though an autopsy found cocaine in her system.

"All they know is what they hear, bad things. She’s had her ups and downs. Who hasn't?" Cissy Houston said in March, in her first TV interview since the death. "Let them think and know what they want to say … I just hope they never come and say it to me."

Houston wrote the 1998 memoir How Sweet the Sound.