Which of the following is a famous McDonald's slogan?

'I'm lovin' it' is a branding campaign by McDonald's Corporation. It was the company's first global advertising campaign. The English part of the campaign was launched in the UK on September 17, 2003, and in Australia and the United States on September 21, 2003, with the music of Tom Batoy and Franco Tortora and vocals by Justin Timberlake, in which the slogan appears.

Source: Wikipedia