World Tour received critical acclaim from music critics who praised Knowles' performance abilities calling her the best female performer and chose the performances of ' Ave Maria', ' Listen' and ' At Last' as highlights during the shows. The fashion and Knowles' look and figure received praise from critics. For the ballads, Knowles wore longer dresses while for the performances of the up-tempo songs, more make-up and more revealing outfits were worn. Chris March made the costumes usable for stage and helped in their making.

Thierry Mugler collaborated with Knowles on the costumes and had a creative advisor role further working on the choreography, lighting and production. She was backed by an all-female band, female background dancers and a big LED screen. The show featured two stages - the main one and a smaller B-stage where Knowles was transferred during the middle of the show. The central theme of the tour was to showcase the difference between Knowles' dual personality her emotional side and her onstage persona, Sasha Fierce which was also demonstrated in the dual album I Am. The set list for the concerts included songs from Knowles' three studio albums as well as several covers of other artists and a Destiny's Child medley. World Tour as part of a campaign by General Mills' Hamburger Helper entitled, 'Show Your Helping Hand' where fans were asked to bring food during the concerts. Pre-concert food drives were held during several stops of the I Am. Knowles described the shows as her best and most theatrical from all of her tours. Preparations for the shows began eight months prior to the beginning of the tour with twelve-hour rehearsals for two months. The tour visited the Americas, Europe, Asia, Africa, and Australia with 108 shows in total. It kicked off in late-March 2009 with five rehearsal shows in North America, officially commencing in late April 2009. The tour was announced in October 2008 and the first dates were revealed in December 2008. It was launched in support of her third studio album, I Am. Tour) was the fourth concert tour by American recording artist Beyoncé. World Tour (sometimes referred to as the I Am.

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