“I’m Lovin’ It” became McDonald’s global tagline after its international launch in 2003.
The campaign was introduced in Munich, Germany, and then rolled out internationally. It marked a major branding effort to give McDonald’s a more unified voice across markets while allowing local advertising and adaptations to continue.
The English phrase was accompanied by the distinctive “ba da ba ba ba” musical signature. Justin Timberlake appeared in an early campaign music video, and the song was produced by The Neptunes. McDonald’s used the campaign to connect its food, restaurants, and customer experience with an upbeat emotional message.
The slogan is sometimes incorrectly dated to the 1990s because McDonald’s had several highly recognizable campaigns before it. It also replaced neither the golden arches nor the company name; it functioned as a tagline supporting those core brand elements.