1. B.B. King, Live in Cook County Jail (1971)
Introduction by: Unknown
Yes, it's true, B.B. King recorded his prison album after Johnny Cash did Live at Folson Prison. And that album opens with a great intro: but it's Johnny Cash presenting himself! ("Hello. I'm Johnny Cash.") It also has some memorable announcements ("These men have receptions: Matlock, a50632, and Batshelter, a39879, they have receptions."), but that was just communicating to the audience. If we go down that road we'll include the stuff about Woodstock's brown acid.
No, the best introduction of all time happened at Cook County Jail, and, sadly, I can't for the life of me track down the name of the woman who is actually at the microphone. Of course, she isn't what makes it interesting; it's the reaction.
Picture this: a yard in the largest single site jail in America, September 10, 1970. Only very recently did they retire the goddamn electric chair. A new program is in place to bring some sort of amusement to the inmates. A woman comes out and says "it's a beautiful day in Chicago" but before B.B. King can come out and play the blues, she'd first like a round of applause for. . .the Sheriff?! Are you kidding me?!