Mac Tonight was the moon-faced character introduced for McDonald’s 1980s advertising campaign of the same name.
The character appeared in commercials beginning in 1986 and was portrayed as a singing, piano-playing figure with a crescent-moon head. The advertisements used a modified version of “Mack the Knife,” connecting the campaign with an instantly recognizable musical hook.
Mac Tonight promoted McDonald’s evening business and helped give nighttime dining a distinctive visual identity. Unlike Ronald McDonald and the McDonaldland characters, Mac Tonight was closely tied to a specific advertising campaign rather than the company’s broader fantasy cast.
The character’s name is sometimes confused with the song title or with McDonald’s menu products. “Mac Tonight” refers specifically to the advertising character and campaign. The campaign was especially prominent in the United States during the late 1980s.