It didn't take long for Jeff Duncan to find his passion. Born into a musical family, Jeff was fascinated by his fathers guitar playing since the age of six. It was then that Jeff received his first informal guitar lesson from his father, and never looked back.
Years later, trading high school homework time for band rehearsal time, Jeff became a founding member of the band, Odin, which quickly became a pillar on the Sunset Strip in the 80s. Odin cut several albums, and was featured in documentary, Decline of Western Civilization, The Metal Years. Although a huge draw on the Sunset Strip, Odin struggled to achieve success outside of the strip, and disbanded in 1988.

Never one to rest, Jeff jumped at the chance to become one of the lead guitar players in a friendly rival of Odin's, Armored Saint, along side guitar player and friend, David Prichard. The dual guitar attack of the virtuosos quickly became legend, but due to personal issues, Jeff left Armored Saint briefly after joining.

Months later while doing a brief stint with the LA based band, Lost Boys, Jeff received the disturbing news that his friend and ex-bandmate, David Prichard was diagnosed with leukemia. David's heroic battle with the disease ended months later, as David tragically passed away at the age of 26.

Given a new outlook on life, the timing was now right when Jeff was once again asked to join Armored Saint. With his personal issues behind him, he jumped at the opportunity to rejoin the band. To this day, Jeff continues to play a very active role in Armored Saint. His blistering guitar riffs, and impeccable rhythm guitar playing have consumed the left side of the stage during each Armored Saint show for more than 20 years.

Due to the many projects in which the band members from Armored Saint partake, the band experiences a fair amount of down time between tours/gigs. Realizing this, Jeff started his own band in 1998. DC4 is comprised of Jeff's brothers Shawn (drums) and Matt (Bass), as well as Rowan Robertson (guitar) of Dio fame. Jeff is the primary song writer, lead vocalist, and co-lead guitarist for DC4. Their most recent CD "Electric Ministry," on Metal Blade records in Europe, has received critical acclaim, and in September 2012, Jeff has begun the writing process for DC4's 4th CD. The band remains very active playing regularly in the southwest part of the country including; LA, Las Vegas, and Phoenix. 

When available, Jeff also plays lead guitar in Dizzy Reed's (Guns N' Roses) solo project. Dizzy often does mini/regional domestic tours, and plays some of the smaller cities in the US that Gun N' Roses does not visit while on tour.

Recently in June 2012, Jeff was featured in the book Tales from the Stage #1. His career and life story are featured along side 14 other rock pros such as Bruce Kulick, Eddie Trunk, Tim "Ripper" Owens, Herman Rarebell, and Tracii Guns.

Jeff's career in music has been an amazing one. One of the more satisfying components of his career is teaching guitar to enthusiastic students, and playing acoustic guitar at special events such as weddings or anniversary's. "I love playing to an appreciative audience," says Jeff. "Seeing 10,000 people with their fist in the air gives you an amazing rush, but so does seeing the father of the bride tear up while you are playing an acoustic song for his daughter. It's a different rush, but it's still very moving."