Billboard magazine begins ranking "Easy Listening" songs -- essentially, songs from the magazine's Top 100 without a real rock 'n' roll sound; Billboard would later describe them as "not too far out in either direction." (Up until then, such songs had been listed in an "Easy Listening" category under "Programming Guide.") The chart would undergo several name changes -- Middle-Road Singles, Pop-Standard Singles -- before being called Adult Contemporary in 1979.
* "The Top 100 Adult Contemporary Songs Ever" (from billboard.com): @
* "The Top 50 Adult Contemporary Artists Ever" (from billboard.com): @
* Listen to "The Boll Weevil Song" (by Brook Benton; the first song to be ranked #1): @