Defiant

Defiant is a hard-hitting rock band from Harrisburg, Pennsylvania, known for their electrifying live performances and genre-blending sound that mixes punk, alternative, classic rock, and heavy metal. Formed in 2018, the band consists of Albert Halterman on vocals and guitar, Joe Defiant on guitar, Paul Barlowski on bass, and Paul Cochran on drums. Over the years, they've built a strong reputation playing nationwide shows alongside notable acts like From Ashes to New, The Texas Hippie Coalition, and L.A. Guns. Defiant has released several EPs, including their third one titled "IGNITE" in 2024 on Curtain Call Records, with singles such as "I Won't Bite" gaining traction on rock radio and charting in the Top 40 on the Secondary Rock Market charts. They continue to push boundaries with their energetic sound and go on tour, with plans for a 2025 tour featuring REHAB, Mickey Avalon, and Scotty Austin.

Additionally, there is a Croatian death/black metal band named Defiant, which is quite different stylistically. This band is preparing to release an album titled "Mammon Mantra" in May 2025, featuring dark and intense themes with guest appearances from noted metal artists. Their lineup includes Kris (guitars), T. Kuternik (vocals), Julijana (bass), and Dominik (drums). Since your noted releases like "Mammon Mantra" and "Insurrection Icon" align with this band, it is likely you are referring to the Croatian metal group Defiant rather than the American hard rock band.

If you want a biography for the Croatian metal Defiant based on available info, it would highlight their underground death/black metal style, thematic depth, and upcoming album release in 2025 with notable collaborations. For the American rock band, their sound roots in punk and metal fusion and high-energy performances stand out.