That chart longevity would only be passed by another one of their songs, " I Knew I Loved You " which ranked at 21 on that list , from their album Affirmation. In addition, the term " hot AC " refers to another subgenre of radio programming that is distinct from the Adult Contemporary chart, despite the apparent similarity in name. No song spent more than six weeks at 1 on this chart during the s, with nine songs accomplishing that feat. In April , the Easy Listening chart officially became known as Adult Contemporary, and those two words have remained consistent in the name of the chart ever since. After alternating the name of this chart twice more in less than a year, Easy Listening was again chosen as the chart name in when the change in compilation occurred.