Mac Tonight was the moon-faced singer used in McDonald's advertising during the late 1980s.
Mac Tonight was introduced in 1986 as a promotional character for McDonald's dinner business. The character wore sunglasses and performed a stylized version of “Mack the Knife,” using a moon-shaped head as the central visual joke. The campaign gave McDonald's a distinctive evening identity rather than focusing only on breakfast or lunch.
Mac Tonight is often remembered simply as a moon mascot, but the character's official advertising name was Mac Tonight. The name was a pun on “make tonight,” reinforcing the campaign's invitation to visit McDonald's in the evening.
The campaign is separate from McDonaldland's long-running fantasy characters. Mac Tonight belonged to a particular advertising period and purpose, whereas characters such as Ronald McDonald and Grimace were used more broadly across family-oriented brand promotion.