What type of song did Mac Tonight adapt for his McDonald's advertising campaign?

Mac Tonight adapted the song “Mack the Knife” for his McDonald's advertising campaign.

The 1986 campaign used a rewritten version of the standard, changing its words to promote McDonald's evening hours and the phrase “It's Mac Tonight.” The familiar melody helped the character's commercials stand out and made the campaign easy to remember.

“Mack the Knife” was originally associated with Kurt Weill and Bertolt Brecht's 1928 musical The Threepenny Opera. It later became a major popular-music standard, especially through recordings such as Bobby Darin's 1959 hit version. Mac Tonight's use was therefore a branding adaptation of an already well-known song rather than an original McDonald's composition.

The campaign's moon character can lead to confusion with songs about the moon, including “Fly Me to the Moon.” The McDonald's advertisements specifically used “Mack the Knife.”