Chicago's Ides of March burst onto the national scene in 1970 with the million-selling single "Vehicle," a tune that bore more than a passing resemblance to the then mega-selling Blood, Sweat & Tears. But the band's pedigree went back further than BS&T's, and with a much different origin. Formed in the mid-'60s in the Windy City, the original Ides were put together by founding member Jim Peterik as a teen band, strong on original material and British pop harmonies. Soon the band was recording for London's Parrot Records subsidiary, releasing five singles between 1966 and 1967,...