Which singer appeared in an early 2003 McDonald’s “I’m Lovin’ It” campaign commercial?

Justin Timberlake appeared in an early 2003 McDonald’s “I’m Lovin’ It” campaign commercial.

Timberlake’s involvement helped give the launch a contemporary pop-culture profile. He appeared in advertising connected with the campaign and performed the longer song associated with its rollout, while the short slogan and musical signature became McDonald’s enduring brand elements.

This history is sometimes simplified into the claim that Timberlake wrote or created the entire campaign. That is not the same thing as appearing in its advertising. The campaign involved advertising agencies, music creators, and multiple performers, and McDonald’s adapted it across markets.

The important branding distinction is that Timberlake was a featured celebrity in early campaign material, whereas “I’m Lovin’ It” is the slogan that continued as the central platform. The commercial appearance is therefore a chapter in the campaign’s launch, not the name of the campaign itself.