The Justified World Tour (also known as Lovin' It Live and Justified World Tour and Lovin' It Live) was the debut concert tour by American singer-songwriter Justin Timberlake. The tour showcased material his debut studio album, Justified (2002).
In September 2003, McDonald's announced Timberlake as a new spokesmen for their "I'm Lovin' It" campaign. Timberlake recorded "I'm Lovin' It", to be featured in ads for the franchise, later expanded and released as a single in December 2003. McDonald's later announced they will sponsor a tour for Timberlake, following his successful North American tour with Christina Aguilera. Timberlake stated, "I love what McDonald's is doing with the new 'i'm lovin' it' campaign and it's cool to be part of it [...] We share the same crowd -- people who like to have fun -- and that's what this new partnership and my European concert tour is all about." The tour begin with Timberlake playing intimate gigs at clubs and theatres in the United States and Australia before expanding to arenas in Europe. After select shows in the U.K., Timberlake performed at local clubs and theatres following his performance in that city.