Who performed the song used to launch McDonald’s “I’m Lovin’ It” campaign in 2003?

Justin Timberlake performed the song used to launch McDonald’s “I’m Lovin’ It” campaign in 2003.

The campaign introduced McDonald’s global slogan through a music-centered launch that connected the restaurant brand with contemporary pop culture. Timberlake recorded and performed the song associated with the campaign, while The Neptunes produced the track. The music helped make the slogan memorable beyond conventional commercial dialogue.

The campaign was developed as an international branding effort rather than a one-country promotion. McDonald’s used the line in advertising and customer-facing materials in numerous markets, making it one of the company’s most durable modern slogans.

A common misunderstanding is that Timberlake created the entire campaign. His role was as the performer of the launch song. DDB Worldwide is credited with creating the advertising campaign, and the slogan itself was used as a broad corporate marketing platform.