Assertion, a band formed by William Goldsmith (Sunny Day Real Estate/ Foo Fighters) and Justin Tamminga, is releasing their sophomore album "Basking In The Gaslight" July 25, 2025 through Spartan Records. The music blends alternative and post-rock elements, with the lead single "Lock and Load" now streaming, showcasing infectious percussion and guitar riffs. The album is a raw and personal exploration of survival and emotional resilience, heavy in both sound and subject, and shaped by years of upheaval and trauma, but ultimately driven by a desire for healing and growth. The music itself balances loud and melodic, sometimes chaotic, always full.

Assertion, led by musician William Goldsmith, reveals their debut album 'Intermission' out on April 9 via Spartan Records, marking Goldsmith's return to music after a decade-long hiatus. With bandmates Justin Tamminga and Bryan Gorder, Assertion's sound echoes 90's alternative rock with driving guitars, a frenetic rhythm section, and a mix of dark heaviness and delicate moments, appealing to fans of Sunny Day Real Estate and Foo Fighters.