What's The Frequency, Kenneth?

This song is about an incident that took place on October 4, 1986, when the CBS news anchor Dan Rather was attacked on a New York City sidewalk by a crazed man yelling "Kenneth, what is the frequency." The man turned out to be William Tager, who was caught after he killed a stagehand outside of the Today show studios on August 31, 1994. Tager, who was sentenced to 25 years in prison, said he was convinced the media was beaming signals into his head, and he was on a mission to determine their frequencies. When Michael Stipe wrote the lyrics, Tager had not yet been identified as Rather's assailant. He wrote the song after becoming intrigued by the case and the media reaction to it, calling it "The premier unsolved American surrealist act of the 20th century." Tager got out of jail in 2010.

After this song came out, "What's the frequency, Kenneth" became a catchphrase and was a running joke on The David Letterman Show (for a short time, "Kenneth" also became a term used for a clueless person). Rather had a good sense of humor about it and later appeared on the show, singing the song with R.E.M. backing him. Peter Buck remembered the experience in the liner notes for In Time: The Best of R.E.M. 1988–2003: "I like Dan Rather. He's a fine newsman, an interesting person to talk to, and quite a bit nuttier than most of those media types (I consider that a good thing). That said, nothing in my rich and varied life prepared me for the experience of performing behind him as he 'danced' and 'sang' 'What's the Frequency, Kenneth?'"

There is a song by Game Theory on their 1987 album Lolita Nation called "Kenneth, What's the Frequency?" It was produced by Mitch Easter, who was R.E.M.'s producer for Chronic Town, Murmur, and Reckoning. Coincidence?