“A psychology professor argues that the brain’s greatest attribute is knowing what other people are thinking. And that a Queen song, played backwards, can improve your mind-reading skills.”
“‘Another One Bites the Dust‘ — when played backward — contains a secret message that, in the end, may help people communicate better.”
http://freakonomics.com/2014/03/13/its-fun-to-smoke-marijuana-a-new-freakonomics-radio-podcast/
On the same topic, here’s a compilation of songs along with lyrics played forward and then backwards with the alleged secret messages.
If you watch the video, try not to watch the words on the video when listening backwards and decide what you think the “secret” message is. It seems only to be “clear” when you see the words on the screen and are otherwise unintelligible.