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Rest in peace, Ziggy Stardust.

David Bowie passed away on Jan. 10 at the age of 69 after a secret 18-month battle with cancer.

"David Bowie died peacefully today surrounded by his family after a courageous 18 month battle with cancer. While many of you will share in this loss, we ask that you respect the family's privacy during their time of grief," read a statement on his official Facebook page.

The "Changes" singer released his 26th studio album, "Blackstar," on his 69th birthday, Jan. 8.

Bowie -- who was born in Brixton, South London -- is survived by his wife, Somali-American supermodel Iman and two children.

The couple married in 1992 and share a 15-year-old daughter, Alexandria.

Bowie also has son, "Moon" and "Source Code" director Duncan "Zowie Bowie" Jones, from his first marriage to Mary Angela "Angie" Barnett Bowie. Their 10-year marriage ended in 1980.

Jones confirmed the sad news on Twitter in the caption of a baby photo of himself and his father.

"Very sorry and sad to say it's true. I'll be offline for a while. Love to all," he wrote.

Tributes have already started to flood in from the world of showbiz.

Fresh from his gig hosting the Golden Globe Awards in Los Angeles on Sunday night, Ricky Gervais tweeted: "I just lost a hero. RIP David Bowie."

Meanwhile, rapper Kanye West tweeted: "David Bowie was one of my most important inspirations, so fearless, so creative, he gave us magic for a lifetime."

News of the uber-private superstar's health struggle comes as a surprise as he had not made his cancer battle public. The type of cancer from which he suffered is currently unknown.

The superstar had become increasingly reclusive in recent years.

His last public performance was a three-song set as part of Keep a Child Alive's annual Black Ball fundraiser at the Hammerstein Ballroom in New York City in November 2006.

He was forced to cancel his European "Reality" tour after he suffered a heart attack while performing at a music festival in Germany in June 2004 and subsequently underwent an emergency angioplasty operation.

Bowie was one of the most successful singers in music history with a career spanning 50 years.

He started out as a novelty musician before hitting the big time in 1969 with his hit track "Space Oddity."

His groundbreaking musical sound and Ziggy Stardust persona paved the way for the glam-rock era of the 1970s.

Bowie declared that he was bisexual in a 1976 interview with Playboy -- and accordingly was hailed a gay icon.

But reflecting on the declaration years later, he admitted that he had some regrets.

In a 1983 interview with Rolling Stone, the singer said the public declaration was the "biggest mistake I ever made" adding, "I was always a closet heterosexual."

In a 2002 interview with Blender, he discussed the matter again, saying he didn't think the admission was "a mistake in Europe, but it was a lot tougher in America."

"I had no problem with people knowing I was bisexual," he said. "But I had no inclination to hold any banners nor be a representative of any group of people."

"I knew what I wanted to be, which was a songwriter and a performer, and I felt that bisexuality became my headline over here for so long," he added. "America is a very puritanical place, and I think it stood in the way of so much I wanted to do."