Anyone who doesn't have a clear image of the Classics IV can be forgiven -- they went through so many shifts in personnel and sound (not to mention a name change after they'd started recording), they were little more than a name attached to some excellent (and very good-selling) records of the second half of the 1960s, without a personality or identity to grab onto easily.
Although they're considered a late-'60s phenomenon, owing to the chronology of their hits, the group can trace its roots back to R&B harmony (i.e. doo wop) music of the late '50s. Detroit-born, Florida-rai...