Lamb of God Adler attended
Virginia Commonwealth University, in
Richmond, Virginia where he met John Campbell,
Mark Morton, and Matt Conner the four of them started a band named
Burn the Priest in 1994. Following multiple lineup changes, they recruited vocalist
Randy Blythe and released their eponymous 1999 debut under their original band moniker,
Burn the Priest. When guitarist Abe Spear left and was replaced by Adler’s younger brother, Willie, the group renamed itself Lamb of God. They signed with Prosthetic Records in 2000 and released
New American Gospel in September of that year. He went on to release 8 albums as a member of Lamb of God/Burn the Priest including two
gold records for
Ashes of the Wake (2004) and
Sacrament (2006). In 2019 he announced his departure from Lamb of God after 25 years with the group. In early May 2025, Adler revealed that his dismissal from Lamb of God was partly due to "developing Musician's
Dystonia, a neurological condition that causes nerve deterioration in limbs most frequently used by musicians", in Adler's case his right foot. After years of growing tensions within the band, particularly after his time serving as Megadeth's drummer and in tandem with his condition, Lamb of God eventually told Adler "that his services were no longer required" despite being aware of his MD.
Other appearances and projects In 2013 Adler played the drums on
Protest The Hero Juno Award winning album
Volition. In 2014, he contributed several drum tracks to the
Testament album
Dark Roots of Earth. The same year, he said that he could neither "confirm nor deny" whether he had performed on the
Slipknot single "
The Negative One". He dismissed this in a later interview. Upon
Gene Hoglan’s departure from Testament In 2022 Alder was asked to become his replacement but turned down the offer, due to a recent divorce and health challenges he was facing at the time. 2015 In 2016 he joined
Megadeth to contribute to their 2016 album
Dystopia. In 2020 he joined the super group Firstborne in 2020 with vocalist Girish Pradhan, guitarist Myrone, and bassist
James LoMenzo. They released an EP that same year and released their debut album
Lucky in 2025. In 2024 Adler formed a new band called Shallow Rising. Featuring vocalist Alex Villarreal, guitarist Tim Ossenfort, bassist Taylor Brandt, and keyboardist Tim King. On September 12, 2024 a music video was released for their debut song "Remorse Code". == Personal life ==