Johnny Cash's ever-popular song "A Boy Named Sue" was actually written by Shel Silverstein, author of The Giving Tree. Johnny Cash recorded the song live in concert on February 24, 1969, at California's San Quentin State Prison. The live San Quentin version of the song became Cash's biggest hit on the Billboard Hot 100 chart and spent three weeks at No. 2.

Several live performances of the line "I'm the son of a bitch that named you Sue!" was bleeped out and even the final line was also edited to remove the word "damn". Both the edited/unedited versions are available on various albums. The term "son of a bitch" was either edited to "son of a gun" or just bleeped out.

When performing the song live in later performances, Cash bleep himself rather than saying "son of a gun." If you had wondered, Shel Silverstein does not have any profanity in his original version, with Sue's father identifying himself as "I'm the heartless hound that named you Sue!"