William Penn and His Pals, also known as William Penn Fyve, emerged from the vibrant 1960s Bay Area music scene as a quintessential garage rock band. Their lineup boasted notable musicians such as lead guitarist Mike Shapiro, composer of the acid-punk anthem "Swami," and organist/vocalist Gregg Rolie, who later gained fame with Santana and Journey. For a brief period, Mickey Hart of the Grateful Dead also contributed as their drummer. The band's energetic performances and distinctive Revolutionary War-era stage attire made them a standout act, sharing stages with legends like Jefferson Airplane and Paul Revere & the Raiders. Their 1966 single "Swami" has since been celebrated as an underground classic, epitomizing the raw, psychedelic sound of the era. ([guerssen.com](https://guerssen.com/product/swami-the-complete-recordings/?utm_source=openai))