Mark Mothersbaugh experimented with reverse audio and put hidden messages in tv shows, commercials, and even in Devo songs:
I smell sausage – hidden backmasking messages (instagram link).
A collection of digital wonders and some other stuff.

Mark Mothersbaugh experimented with reverse audio and put hidden messages in tv shows, commercials, and even in Devo songs:
I smell sausage – hidden backmasking messages (instagram link).