Casey Kasem retires

I grew up listening to Casey Kasem in the '70s and '80s.

I can't imagine what my life would have been like had Casey not helped create the long-running 'American Top 40' radio countdown.

He still hosts several AC-formatted shows, but this July 4, the 77-year-old Detroit native is hanging up his mike for good.

It's always sad when one of your major influences in life retires.