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Michael Nesmith, a singer/guitarist for the Monkees, has died. He was 78.

"I’m heartbroken," bandmate Micky Dolenz told Fox News in a statement on Friday.  "I’ve lost a dear friend and partner. I’m so grateful that we could spend the last couple of months together doing what we loved best – singing, laughing, and doing shtick. I’ll miss it all so much. Especially the shtick. Rest in peace, Nez. All my love, Mick."

The star passed away on Friday from natural causes, Rolling Stone reported.

"With Infinite Love we announce that Michael Nesmith has passed away this morning in his home, surrounded by family, peacefully and of natural causes," his family told the outlet in a statement. "We ask that you respect our privacy at this time and we thank you for the love and light that all of you have shown him and us."

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Mike Nesmith on the set of the television show The Monkees circa 1967 in Los Angeles, California. (Photo by Michael Ochs Archives/Getty Images)

A spokesperson for the star didn’t immediately respond to Fox News’ request for comment.

The Texas native wrote many of the popular songs for the TV boy band, such as "Mary, Mary," "Circle Sky," "Listen to the Band" and "The Girl I Knew Somewhere."

Nesmith was running "hoot nights" at the popular West Hollywood nightclub The Troubadour when he saw a trade publication ad seeking "four insane boys" to play rock musicians in a band modeled after The Beatles.

The show featured the comical misadventures of a quartet that traveled around Los Angeles in a tricked-out Pontiac GTO called the MonkeeMobile and, when they weren’t chasing girls, pursued music stardom.

When "The Monkees" debuted in September 1966, Nesmith, along with Dolenz, Peter Tork and Davy Jones became overnight teen idols. Producers Bob Rafelson and Bert Schneider modeled the show after The Beatles’ popular musical comedies "A Hard Day’s Night" and "Help!," seeking to create a band that would mirror them in cheekiness if not musical talent.

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(L-R) Musicians Micky Dolenz and Michael Nesmith of the Monkees perform onstage during the final show of ‘The 55th Anniversary Farewell Tour’ at The Greek Theatre on November 14, 2021 in Los Angeles, California.  (Photo by Scott Dudelson/Getty Images)

Each episode rolled out two or three new Monkees songs, six of which became Top 10 Billboard hits during the show’s two-year run. Three others, "I’m a Believer," ″Daydream Believer" and "Last Train to Clarksville," reached No. 1.

Jones, with his British accent and boyish good looks, was the group’s cute lead singer. Dolenz became the wacky drummer, although he had to learn to play the drums as the show went along. Tork, a folk-rock musician, portrayed the comically clueless bass player. Nesmith, with his twangy Texas accent and the wool hat he’d worn to his audition, became the serious but naive lead guitarist.

A prankster by nature, he’d arrived at the audition carrying a guitar and bag of dirty laundry he said he planned to wash immediately afterward. With a harmonica around his neck, he stormed into a casting office, banging the door loudly. After pausing to gaze at a painting as if it were a mirror, he sat down and immediately put his feet up on a desk.

He got the job.

But he rebelled almost immediately when producers told him they were going to call his character "Wool Hat." He demanded they use his real name, as they did with the other actors.

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The Monkees

Popular TV actors and pop singers The Monkees, circa 1965. Clockwise from top left, they are, Mike Nesmith, Micky Dolenz, Davy Jones and Peter Tork.  (Photo by Silver Screen Collection/Hulton Archive/Getty Images)

It would be the first of many confrontations Nesmith would have with producers during a tumultuous two-year run in which "The Monkees" won the 1967 Emmy for best comedy series.

Nesmith and Tork, the group’s two most accomplished musicians, railed against the program’s refusal to allow them to play their own instruments at recording sessions. But when Nesmith revealed that fact to reporters, music critics quickly turned on "The Monkees," dismissing the show as a fraud and the band as the "Prefab Four," a mocking reference to The Beatles’ nickname, Fab Four.

Nesmith, meanwhile, had written several songs he hoped to debut on the show, but almost all were dismissed by music producer Don Kirshner, as sounding too country.

Among them was "Different Drum," which Linda Ronstadt recorded in 1967 for her first hit single, validating to Nesmith his opinion that Kirshner, hailed by the pop music industry as "The Man With The Golden Ear," didn’t know what he was talking about.

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Michael Nesmith was a struggling singer-songwriter in September 1966 when "The Monkees" television debut turned him and fellow band members Micky Dolenz, Peter Tork and David Jones into overnight rock stars. (Getty Images)

Things came to a head when all four Monkees demanded they take control of the music. They were warned they would be sued for breach of contract.

At that, Nesmith rose from his seat and smashed his fist through a wall, telling Kirshner it could have been his face.

For years Nesmith would refuse to confirm or deny the incident, even as the other three gleefully recounted it to reporters. In his 2017 memoir, "Infinite Tuesday," he did acknowledge it, saying he’d lost his temper when he felt his integrity was being questioned.

"It was an absurd moment in so many ways," he wrote.

It did give the Monkees control over their music, however, beginning with the group’s third album, "Headquarters."

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Michael Nesmith The Monkees

Michael Nesmith was running "hoot nights" at the popular West Hollywood nightclub The Troubadour when he saw a trade publication ad seeking "four insane boys" to play rock musicians in a band modeled after The Beatles. (Getty Images)

After the show concluded in 1968 the band embarked on a lengthy concert tour where members sang many of their own songs and played their own instruments before crowds of adoring fans. Jimi Hendrix was sometimes their opening act.

Following the band’s breakup Nesmith rarely rejoined the others for reunion tours, leading many to believe he disliked the band and the show, something he steadfastly denied.

"I really enjoyed being in the show. I really enjoyed working with Davy and Micky and Peter," he told Australian Musician magazine in 2019.

It was, he would often say, that he was simply too busy doing other things.

Over the years he recorded more than a dozen albums and toured with the First National Band, the country-rock-folk group he assembled.

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Musician Micky Dolenz arrives at the 58th Grammy Awards in Los Angeles, California February 15, 2016. REUTERS/Danny Moloshok - TB3EC2G05A1JX

"I’m heartbroken. I’ve lost a dear friend and partner," Micky Dolenz told Fox News in a statement. (Reuters)

He wrote scores of songs, including "Some of Shelly’s Blues," "Papa Gene’s Blues," You Just May Be the One" and "The Girl That I knew Somewhere" that he performed with the Monkees. Others, performed with the First National Band, included "Joanne," "Propinquity (I’ve Just Begun to Care)" and "Different Drum."

For the Monkees’ 30th anniversary he induced the others to reunite to record a new album, "Justus," for which all four composed the songs and played the instruments. He also rejoined the others for a brief tour and wrote and directed their 1997 TV reunion film, "Hey, Hey, It’s the Monkees."

Nesmith also wrote and produced the 1982 science-fiction film "Timerider: The Adventure of Lyle Swann" and earned executive producer credits on "Repo Man," "Tape Heads" and other films.

His 1981 comedy-music video "Elephant Parts" won a Grammy and led to "PopClips," a series of music videos broadcast on the Nickelodeon cable network that in turn led to the creation of MTV.

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Singer Michael Nesmith of The Monkees performs onstage during The Monkees Farewell tour at Atlanta Symphony Hall on October 08, 2021 in Atlanta, Georgia. (Photo by Paras Griffin/Getty Images)

Nesmith even published two well received novels, 1998’s "The Long Sandy Hair of Neftoon Zamora" and 2009’s "The America Gene."

In 1999, he prevailed in a bitter courtroom battle with the Public Broadcasting System over royalties from a home-video deal his media company, Pacific Arts, had struck with PBS. A federal jury awarded him $48 million, concluding the popular purveyor of children’s shows and documentaries had defrauded him.

Nesmith, showing he hadn’t lost his Monkees sense of humor, said afterward: "It’s like catching your grandmother stealing your stereo. You’re glad to get your stereo back, but you’re sad to find out that Grandma’s a thief."

Both sides agreed on an undisclosed settlement and Nesmith founded another company, Videoranch.

After Jones died in 2012 he began to rejoin the Monkees more frequently, their concerts now earning glowing reviews from critics. He attributed that to most of the group’s original critics having died or retired.

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After the group broke up in 1970, Nesmith moved on to a long and creative career, not only as a musician but as a writer, producer and director of films, author of several books, head of a media arts company and creator of a music video format that led to the creation of MTV. (YouTube)

Following Tork’s death in 2019, Nesmith and Dolenz took on the name The Monkees Mike & Micky.

Robert Michael Nesmith was born Dec. 30, 1942, in Houston, Texas, the only child of Warren and Bette Nesmith.

His parents divorced when he was 4 and his mother often worked two jobs, as a secretary and painter, to support her son and herself. It was that latter job that inspired her to whip up a typewriter correction fluid called Liquid Paper in her kitchen blender. By the mid-1970s it had made her a fortune, which she eventually left to her son and to nonprofit foundations she endowed to promote women in business and the arts.

Her son, who was married and divorced three times, is survived by four children, Christian, Jason, Jessica and Jonathan.

The Associated Press contributed to this report.