From Wikipedia, the free encyclopedia

Patrick Lachman
Born1970 (age 52–53)
Origin Portland, Oregon, U.S.
  • Guitar
  • vocals
Years active1987–present
Member ofDiesel Machine
Formerly of

Patrick "Pat" Lachman (born in 1970) [1] is an American heavy metal guitarist and vocalist.


Portland, Oregon native Lachman started playing guitar at age 12. [1] He was a short-lived member of Dr. Mastermind, featuring former Wild Dogs vocalist Matt McCourt, before joining his brother, vocalist Tim Lachman, [1] in another local band, Gargoyle, in 1988. Gargoyle would move to Los Angeles in 1990 where the band morphed into State of the Art, recording an acclaimed three-song demo before disbanding in 1993.[ citation needed] The Lachman brothers next hooked up with Canada native Shane Gaalaas, then the drummer for Swedish guitarist Yngwie Malmsteen, and recorded another demo under the name Eleventh Hour. In 1996, Lachman and Gaalaas teamed up with former Last Rites and World in Pain members A.J. Cavalier (later to join SOiL) and Jeff Mohr to form Diesel and cut a six-song demo. [2] Parting ways with Mohr and adding Rich Gonzales, formerly with Recipients of Death, on bass, the band would change their name to Diesel Machine in time for the release of their debut album, Torture Test, in 2000. By then, Lachman had already been picked as one of the guitar players for Halford, the solo band of then ex- Judas Priest vocalist Rob Halford.

With Halford, Lachman co-wrote and recorded Resurrection (2000), Live Insurrection (2001), and another studio album, Crucible (2002). He also collaborated with Tommy Victor of Prong on the song "Initiation" which appeared on the band's 2002 100% Live album and was re-recorded as "Embrace the Depth" for Scorpio Rising. 2003 saw the release of a Halford EP titled Fourging the Furnace, released in Japan only.

Lachman had already left the Halford band in November 2002 [3] to join former Pantera guitarist "Dimebag Darrell" Abbott and his brother, drummer Vinnie Paul Abbott, in a new band called Damageplan as their vocalist. Their debut album, New Found Power, was released in 2004; in addition, the song "Ashes to Ashes", featuring Jerry Cantrell of Alice in Chains, appeared on The Punisher soundtrack. The band had recorded several songs for a second album, however, on December 8, 2004, during a Damageplan show at the Alrosa Villa in Columbus, Ohio, Darrell was fatally shot on stage by 25-year-old mentally ill ex- Marine Nathan Gale, who was shot and killed by police minutes later. [4]

After the untimely demise of Damageplan, Lachman put together a new band called The Mercy Clinic in 2005 with guitarists Brian Harrah ( Professional Murder Music) and Josh Stinson (Drist), bassist Steed Najera (Triple Seven), and drummer Bevan Davies ( Danzig, Comes with the Fall, Jerry Cantrell). [5] Over the course of the next couple of years, the group would write and demo upwards of 20 songs and played frequent shows in the Los Angeles area but ultimately failed to land a record deal. Subsequently, the project was put on hold. On In February 2005, Lachman performed with the surviving members of Alice in Chains at a benefit for tsunami relief in Seattle, Washington, filling in for their late lead singer Layne Staley, along with fellow singers Maynard James Keenan ( Tool), Wes Scantlin ( Puddle of Mudd), and Ann Wilson ( Heart). [6]

Lachman filled in for Killswitch Engage's guitarist Adam Dutkiewicz on the band's North American tour in early 2007. [7] He also filled in for Dutkiewicz at Download Festival 2007. In 2008, Lachman began working with Raymond Herrera and Christian Olde Wolbers formerly of Fear Factory under the name Burn It All. [8] [9]

On April 1, 2019, Lachman and Diesel Machine released "Shut It", their first new song in nearly two decades, and announced a tentative fall 2019 release for their long in the works sophomore album, Evolve. [10] The album was finally released on August 21, 2020, through German company Metalville. [11]

On April 30, 2021, Cosmosquad & The Jasonauts released a digital single of "A Jam For Jason MMXXI" on Bandcamp to raise funds for ALS stricken musician Jason Becker, with Lachman contributing lead guitars alongside Jeff Kollman, Chris Poland, Vinnie Moore, and Steve Morse. Lachman had recorded his parts 20 years earlier but this particular version of the track was never released and had only recently been re-discovered. [12]



Diesel Machine

  • Torture Test (2000)
  • Evolve (2020)


The Mercy Clinic

  • The Mercy Clinic demos (2005, 2006)

Cosmosquad & The Jasonauts

  • A Jam for Jason MMXXI digital single (2021)

Compilations and soundtracks

  • Overload – A Tribute to Metallica (1998)

with Diesel Machine – The Thing That Should Not Be

  • A Call to Irons: A Tribute to Iron Maiden Volume 2 (1999)

with Diesel Machine – Children of the Damned

  • Devilswork: A Tribute to Ministry (2000)

with Diesel Machine – Supermanic Soul

  • Southern Death – Tribute to Pantera (2000)

with Diesel Machine – Primal Concrete Sledge

  • Slave to the Power – The Iron Maiden Tribute (2000)

with Eleventh Hour – Alexander the Great
with Error 7 – Stranger in a Strange Land

with Damageplan – Ashes to Ashes (featuring Jerry Cantrell)


  1. ^ a b c "Patrick Lachman | Biography & History". AllMusic. Retrieved October 27, 2020.{{ cite web}}: CS1 maint: url-status ( link)
  2. ^ - Diesel page at Archived May 21, 2009, at the Wayback Machine
  3. ^ - Patrick Lachman Leaves Halford! Archived September 5, 2005, at the Wayback Machine
  4. ^ - Damageplan Singer Yelled 'Call 9-1-1' Before Jumping Off Stage Archived December 17, 2004, at the Wayback Machine
  5. ^ "- Ex-Damageplan Singer Starts Healing Process With The Mercy Clinic". MTV. Archived from the original on February 9, 2012. Retrieved April 10, 2011.
  6. ^ "- Ex-Alice In Chains Members Enlist Damageplan Singer, Others For Benefit". MTV. Archived from the original on November 7, 2012. Retrieved April 10, 2011.
  7. ^ - Ex-Damageplan Singer To Play Guitar For Killswitch Engage Archived August 27, 2009, at the Wayback Machine
  8. ^ "Ex-Damageplan Frontman Promoting New Band Burn It All On XM Radio Next Monday". Retrieved April 17, 2008.
  9. ^ "Burn It All Featuring Fear Factory, Ex-Damageplan Members: Audio Samples Available". June 2008. Retrieved June 1, 2018.
  10. ^ "Former Damageplan Singer Patrick Lachman Releases First New Diesel Machine Song In Nearly 20 Years". April 2019. Retrieved April 1, 2019.
  11. ^ "Diesel Machine Feat. Ex-Halford, Damageplan, Soil Members: 'Evolve' Album Due In August". July 7, 2020. Retrieved July 7, 2020.
  12. ^ "Jeff Kollman Releases Original Version Of 'A Jam For Jason' To Benefit Jason Becker". Retrieved May 1, 2021.