The stereo ad that I will never get out of my head featured Mike Love from the Beach Boys and Jan Berry from Jan & Dean and showed up in Rolling Stone sometime in the late '70s.
I think it was for a receiver and featured Jan smiling and Mike appearing to talk as the held the thing between them...the caption from Mike was something like, "It has the great sound I want and is simple enough for Jan to use."
Cmon, really??!?!!?
For those who aren't familiar with Jan, he suffered severe head injuries in a 1966 car wreck and had to deal with brain damage and partial paralysis for the rest of his life. Ironically, he crashed not far from the "Dead Man's Curve" in Hollywood that inspired a hit Jan & Dean single.