Still, when the Amboy Dukes' self-titled debut LP appeared on the Mainstream label in 1967, it was their originals that became the focus; while Nugent handled the music, Farmer penned the drug-fixated lyrics, adding a psychedelic sensibility to an otherwise proto-metal sound. After a series of lineup shifts that saw White and Lober exit in favor of bassist Greg Arama and keyboardist Andy Solomon, the Dukes issued Journey to the Center of the Mind in 1968, riding the title track into the U.S. Top 20. Vocalist Rusty Day replaced Drake in time for 1969's Migration, which failed to equal the success of its predecessor; Marriage on the Rocks, issued later that same year, was also a disappointment, and after 1971's Survival of the Fittest, Nugent dismissed Day and Solomon after Palmer left the group to accept an engineering gig. After recording a handful of albums as Ted Nugent the Amboy Dukes, he finally dropped the group's name altogether and mounted a solo career. Guitarist Steve Farmer died on April 7, 2020. Original lead singer John Drake died on August 30, 2021. ~ Jason Ankeny, Rovi