Who performed the featured vocals on McDonald’s 2003 “I’m Lovin’ It” recording?

Justin Timberlake performed the featured vocals on McDonald’s 2003 “I’m Lovin’ It” recording.

The campaign’s English-language song was recorded by Timberlake and released as part of McDonald’s worldwide “I’m Lovin’ It” branding campaign. The campaign used a short, memorable musical hook to connect McDonald’s advertising across multiple countries.

The song was produced by The Neptunes, the production team associated with Pharrell Williams and Chad Hugo. Pharrell’s connection to the production is one reason he is sometimes incorrectly given sole credit for the vocal performance.

The slogan and musical identity became one of McDonald’s most durable modern branding elements. The advertising campaign was launched globally in 2003, while Timberlake’s recording helped give the audio signature a pop-music profile.