Which musician was featured in the 2003 McDonald’s “I’m Lovin’ It” promotional music video?

Justin Timberlake was featured in the 2003 McDonald’s “I’m Lovin’ It” promotional music video.

McDonald’s connected the new slogan with pop music as it launched the campaign internationally in 2003. Timberlake appeared in an early promotional video associated with the campaign, helping give the brand message a contemporary entertainment identity.

The music element supported McDonald’s effort to make its advertising feel culturally current and internationally shareable. The slogan itself became more durable than any individual performer or commercial, allowing the campaign to continue across changing music and advertising styles.

This fact is sometimes confused with the singer credited with performing or recording versions of the campaign’s jingle. Timberlake’s role in the early promotional video is the specific branding connection asked about here.