The Archies
Most '60s bubblegum groups were faceless studio concoctions, made up of hired professionals and given nominal group identities after the fact. The Archies made no pretense of being a real band in the first place -- their music, including the smash hit "Sugar, Sugar," was "performed" by the animated TV cartoon characters spun off from Archie comics. In reality, of course, they were a studio concoction made up of hired professionals (most notably lead singer Ron Dante), but in this case, they weren't technically faceless.