The '60s and '70s were times of massive cultural upheaval. Musicians took on the task of asking big questions and trying to figure it all out. These ten songs understood the assignment.

Forbes contributors publish independent expert analyses and insights. Hugh McIntyre covers music, with a focus on the global charts.

The latter are songs built on gimmick concepts. But what happens when those two wild worlds combine? Well, here below, we wanted to dive into that very question and find out the answer. Indeed, these ...