The song's lyrics have Wonder surprising someone in his life with an unexpected telephone call. Throughout the song, Wonder lists various events in a yearly calendar that might prompt someone to call a loved one. Yet he explains no special annual event such as
New Year's Day or
Halloween spurred the call. He simply wants to say that he loves them from the bottom of his heart.
Cash Box described the song as "a tender and romantic love letter which captures the ever-present and Wonderous feeling of love and optimism." There was a dispute among Wonder, his former writing partner
Lee Garrett, and Lloyd Chiate as to who actually wrote the song. Chiate claimed in a lawsuit that he and Garrett wrote the song years before its 1984 release. However, a jury ultimately sided with Wonder. ==Personnel==