A book about Gustavo Cerati's life will be released in December, but the late singer's family does not approve of it.

The family released a statement to slam the upcoming book.

"Neither his family nor his group of collaborators are happy to participate in any biography about Gustavo," the statement said. "Also not for a documentary over his career or personal lives. We feel this isn't the moment for us to worry about this when so little time has passed since the passing of our dear Gustavo."

The book, which will be titled "Cerati. La Biografia," is written by Argentine journalist Juan Morris, who works for Rolling Stone.

And the family has explained that this biography does not have their approval and it is not official.

His family would eventually like to take on the project, but there's no rush to do so at the moment.

"We think that the time will come to share the story of his accomplishment and his life in a serious, realistic manner and professionally," the family said. "It would count on the people that knew him personally and profoundly. It will be far away from certain opportunists of the moment."

Although the family is upset about what is going on at the moment, they took a minute to thank everyone for their support during these difficult times.

The Soda Stereo frontman was confirmed dead on Sept. 4. He was in a coma for four years after suffering a stroke in 2010. He was airlifted to Bueno Aires and had brain injury.

His mother later explained that Cerati was not brain dead.

"Gustavo wasn't brain dead," said his mother, Lilian Clark. "He heard us, so we had a glimmer of hope. I would say, 'why not?' We are millions of people in this world and each have a different digital imprint, and I kept saying, 'Why not. Everyone of us can react to different stimuli differently.'"

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