
Amp Week 2026: After a false start as a teenage hair metaller, Butch Walker formed power-pop outfit The Marvelous 3, enjoying a hit with 1998’s Freak of the Weak. His 2002 debut solo album, Left of Self-Centered, wasn’t a commercial smash – but it found a fan in Avril Lavigne, who employed Walker as a producer for hits like My Happy Ending and When You’re Gone.
From there he’s developed an extensive resumé in pop (Pink, Katy Perry, Taylor Swift), pop-punk (Green Day, Fall Out Boy, Weezer), and a diverse spread of other artists including Jewel, Frank Turner and The Wallflowers. In 2025 he became the new guitarist with platinum-selling rockers Train.