Which singer performed the vocals for McDonald’s first “I’m Lovin’ It” campaign song?

Justin Timberlake performed the vocals for McDonald’s first “I’m Lovin’ It” campaign song.

McDonald’s launched the “I’m Lovin’ It” campaign in 2003. The campaign used a pop-oriented song and a short vocal hook to give the brand a consistent international identity. Timberlake’s recording helped connect the advertising campaign with contemporary popular music.

The campaign was notable because McDonald’s used the same central phrase and musical identity across multiple markets, adapting the surrounding advertising for local audiences. The phrase became one of the company’s best-known branding elements.

The campaign’s music is sometimes associated with other artists involved in its creation and production, including Pharrell Williams and Pusha T. Those credits are part of the wider story of the song and campaign, but the credited vocal performer for the original campaign recording was Justin Timberlake.