Which McDonald's character was introduced in 1986 as a moon-themed singer?

Mac Tonight was the McDonald's character introduced in 1986 as a moon-themed singer.

The character was created for a McDonald's advertising campaign aimed at promoting evening dining. Mac Tonight wore dark sunglasses and a formal suit, had a crescent-moon-shaped head, and sang a version of “Mack the Knife.” His name combined “Mac,” a reference to McDonald's, with “Tonight,” emphasizing the restaurant's nighttime business.

Mac Tonight stood apart from the earlier McDonaldland cast. Rather than being a child-focused cartoon resident, he was designed as a lounge-singer figure with a distinctive musical and visual style. The campaign became especially associated with late-1980s McDonald's television advertising.

Mac Tonight is sometimes confused with Ronald McDonald or with McDonaldland characters such as Mayor McCheese. His defining features were the crescent moon head, sunglasses, formalwear, and promotion of evening visits.