Who recorded the vocal version of McDonald's “I'm Lovin' It” jingle in 2003?

Justin Timberlake recorded the vocal version of McDonald's “I'm Lovin' It” jingle in 2003.

The campaign was developed for McDonald's by the German advertising agency Heye & Partner and launched internationally in 2003. The short musical phrase became the basis of a global branding platform, with the English words “I'm Lovin' It” paired with the distinctive “ba da ba ba ba” vocal hook.

Timberlake recorded a longer pop-oriented version associated with the campaign. The song was written by Pharrell Williams, Thomas Bangalter, and Guy-Manuel de Homem-Christo, among others involved in the campaign's music and production. McDonald's used the branding across television commercials, packaging, restaurants, and international marketing.

A common mistake is to identify Timberlake as the song's sole writer. His role was primarily as the featured vocal performer on the commercial recording, while the composition and advertising campaign involved several creators.