Which McDonald's slogan introduced in 2003 contains the phrase “I'm Lovin' It”?

“I'm Lovin' It” is the McDonald's slogan introduced in 2003.

McDonald's launched “I'm Lovin' It” as a global marketing campaign in 2003. The phrase was designed to be short, conversational, and adaptable across languages and markets. It became one of the company’s most durable brand expressions and was commonly paired with the “ba da ba ba ba” musical mnemonic in advertising.

The slogan belongs to a later period of McDonald's branding than “You Deserve a Break Today,” which was introduced in 1971 and became one of the company’s best-known earlier lines. McDonald's has used many local and temporary advertising messages, but “I'm Lovin' It” served as a broad global platform.

The wording is sometimes written with different capitalization in advertising or informal references. The canonical phrase is “I'm Lovin' It,” including the apostrophe in “I'm” and the informal spelling “Lovin'.” It describes the campaign line, not the name of a menu item or restaurant program.