There are few stories in heavy metal as dramatic as Dave Mustaine’s—fired from a band that would become Metallica, only to build his own empire with Megadeth. Decades later, a cancer diagnosis and a surprise call from James Hetfield rewrote the script.

Born: September 13, 1961 ·
Main band: Megadeth (founder, 1983–present) ·
Former band: Metallica (1981–1983) ·
Net worth estimate: $12–$18 million ·
Cancer diagnosis: Throat cancer (2019) ·
Latest book: In My Darkest Hour (2025)

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact net worth varies between $12 million and $18 million depending on the source
  • The precise current relationship with James Hetfield remains largely private
3Timeline signal
  • April 11, 1983: Fired from Metallica (Wikipedia, online encyclopedia)
  • June 17, 2019: Announces throat cancer diagnosis (Wikipedia, online encyclopedia)
  • January 31, 2020: Declares himself cancer-free (Wikipedia, online encyclopedia)
4What’s next
  • Megadeth is set to end with a final album and tour in 2025 (Wikipedia, online encyclopedia)
  • Mustaine’s memoir In My Darkest Hour released in 2025 (Wikipedia, online encyclopedia)

The key facts table below draws from the online encyclopedia Wikipedia as its primary source.

Eight key facts about Dave Mustaine, all sourced from Wikipedia, online encyclopedia.
Label Value
Full name David Scott Mustaine
Birth date September 13, 1961
Birth place La Mesa, California
Primary role Singer, guitarist, songwriter
Band (current) Megadeth
Years active 1981–present
Spouse Pamela Anne Casselberry (m. 1991)
Diagnosed with Throat cancer (2019)

What has Dave Mustaine been diagnosed with?

Throat cancer diagnosis and treatment

  • Mustaine announced a throat cancer diagnosis on June 17, 2019 via social media (Wikipedia, online encyclopedia).
  • He underwent radiation and chemotherapy treatments throughout 2019.

The diagnosis came as a shock to fans, but Mustaine remained optimistic, later saying the cancer was caught early.

Current health status

  • During a Megadeth concert in January 2020, Mustaine told the crowd he was cancer-free (Wikipedia, online encyclopedia).
  • He has continued touring and performing since his remission, with no recurrence reported as of 2025.
The upshot

Mustaine’s cancer battle became a turning point not just for his health but for the long-frozen relationship with James Hetfield, who reportedly reached out after the diagnosis (97X, radio station).

The implication: Mustaine’s illness forced a reconciliation that many thought would never come.

Why did Metallica fire Dave Mustaine?

The 1983 firing incident

  • Mustaine was officially ejected from Metallica on April 11, 1983 (Wikipedia, online encyclopedia).
  • The band cited alcohol abuse and personality clashes as the reasons (Loudwire, metal news site).
  • He was sent back to California on a bus while the rest of the band went to record their debut album, Kill ‘Em All.

Mustaine’s version of events

  • Mustaine has said he was awoken and told he was replaced by Kirk Hammett (Loudwire, metal news site).
  • He later admitted his drinking and aggressive behavior contributed to the firing.

Kirk Hammett as replacement

  • Hammett, formerly of Exodus, joined Metallica the same week and played on the debut album.
  • Mustaine and Hammett have a complicated relationship, but Mustaine has acknowledged Hammett’s talent.
Why this matters

The firing created a rivalry that defined thrash metal for three decades. Without that bus ride, there might be no Megadeth.

The pattern: rejection fueled ambition, turning a bitter exit into the foundation of a parallel metal empire.

Are James Hetfield and Dave Mustaine friends now?

Public reconciliation timeline

  • In 2011, Mustaine and Hetfield performed Metallica songs together at the “Big Four” concert in Europe.
  • After Mustaine’s 2019 cancer announcement, Hetfield reached out to him, which Mustaine described as “so good to hear” (97X, radio station).

Recent interactions

  • In a 2024 interview, Hetfield said the two “had a good talk” and that there was love there.
  • Mustaine’s 2025 memoir In My Darkest Hour reportedly includes a respectful chapter about Hetfield.
Bottom line: Hetfield and Mustaine are no longer enemies, but the friendship remains private and measured. Both have expressed mutual respect without pretending the past didn’t happen.

What is Dave Mustaine’s net worth?

Estimated figures

  • Mustaine’s net worth is estimated between $12 million and $18 million (YouTube, video platform). Estimates vary, so the figure is not precise.
  • By contrast, James Hetfield’s net worth is reportedly around $300 million (YouTube, video platform).

Income sources

  • Megadeth album sales, touring, and merchandise account for the bulk of Mustaine’s wealth.
  • He also earns from songwriting royalties, book sales, and occasional appearances.

The pattern: Mustaine’s net worth, while substantial, is far smaller than Hetfield’s, reflecting Megadeth’s smaller commercial scale compared to Metallica’s global dominance.

Timeline

  • 1981: Joins Metallica as lead guitarist (Wikipedia, online encyclopedia)
  • 1983: Fired from Metallica; co-founds Megadeth (Loudwire, metal news site)
  • 1985: Megadeth releases debut album Killing Is My Business… And Business Is Good!
  • 2019: Diagnosed with throat cancer (Wikipedia, online encyclopedia)
  • 2020: Announces remission (Wikipedia, online encyclopedia)
  • 2025: Releases memoir In My Darkest Hour and announces end of Megadeth (Wikipedia, online encyclopedia)

What’s confirmed and what’s not

Confirmed facts

  • Mustaine was fired from Metallica in 1983
  • He founded Megadeth in 1983
  • He was diagnosed with throat cancer in 2019
  • He is in remission as of 2020
  • He is the sole consistent member of Megadeth

What’s unclear

  • Exact net worth figure varies across sources
  • Precise nature of current relationship with James Hetfield is largely private

Quotes

“I was just devastated. My whole life was gone.”

Dave Mustaine, on being fired from Metallica (Loudwire, metal news site)

“I’m so happy to hear from James. It means a lot.”

Dave Mustaine, on Hetfield reaching out after cancer diagnosis (97X, radio station)

“We’ve had our differences, but I have a lot of respect for Dave.”

James Hetfield, in a 2024 interview (YouTube, video platform)

Summary

Dave Mustaine’s story is one of resilience: fired from a fledgling Metallica, he built Megadeth into a thrash metal titan, survived throat cancer, and repaired ties with his former bandmates. For fans wondering what comes next, Mustaine has chosen a planned endgame—a final Megadeth album and tour in 2025. Mustaine is writing his own farewell, not waiting for fate to decide.

For a deeper look into Dave Mustaine’s cancer and firing story, Dave Mustaines cancer and firing story offers a comprehensive overview of his journey from Metallica to Megadeth.

Frequently asked questions

How old is Dave Mustaine?

Dave Mustaine was born on September 13, 1961, making him 63 years old as of 2025.

How tall is Dave Mustaine?

Dave Mustaine is reported to be about 5 feet 8 inches (1.73 m) tall.

Who is Dave Mustaine’s wife?

He has been married to Pamela Anne Casselberry since 1991.

Is Dave Mustaine still touring with Megadeth?

Yes, Megadeth continues to tour and is expected to do a final tour in 2025.

What is Dave Mustaine’s most famous song?

Mustaine’s best-known song as a songwriter is often considered “Symphony of Destruction” or “Holy Wars… The Punishment Due.”

Has Dave Mustaine ever rejoined Metallica?

No, he has never rejoined Metallica. He has performed with them on stage a few times but remains the frontman of Megadeth.