The moon-headed singer featured in the campaign was Mac Tonight.
Mac Tonight was introduced in a McDonald’s advertising campaign in 1986. The character had a crescent-moon head, wore formal evening clothing, and sang a rewritten version of Bobby Darin’s “Mack the Knife.” The advertisements promoted McDonald’s evening hours and gave nighttime dining a distinct identity.
The campaign stood out because it used a surreal, highly recognizable performer rather than the restaurant’s usual food or family characters. Mac Tonight’s visual design, sunglasses, tuxedo, and piano-playing presentation made the character easy to recognize in television commercials and other promotional material.
Mac Tonight is sometimes mistaken for an ordinary McDonald’s mascot used across all eras. He was specifically associated with a late-1980s campaign centered on nighttime visits. He also should not be confused with Speedee, Ronald McDonald, or the McDonaldland characters, whose roles and periods were different.