In 1983 Hasbro bought the license of the Diaclone and Micro Change toys from Takara, then commissioned Marvel Comics to come up with a story-line and character names for the toys. The result: Transformers. Despite Tonka releasing the cheaper Gobots line six months earlier, Hasbro's Transformers took the toy market by storm in 1984, raking in US$150 million that year. At the peak of the toy line's popularity, The Transformers: The Movie hit theaters to further capitalize on its success, but the film polarized fans and collectors with the death of Optimus Prime and majority of the original characters. As Hasbro took full control of Transformers from Takara by the late 1980s, sales declined until the toy line was discontinued in 1991. After the failed Generation 2 reboot, Beast Wars rejuvenated the franchise in 1995.
In 2007, the live-action Transformers film solidified Transformers' position as Hasbro's flagship toy line.

The tour was designed by Willie Williams, who has worked on every U2 tour since 1982. Williams had been toying with ideas for 360-degree stadium staging for U2 for a number of years, and presented sketches of a four-legged design to the group near the end of their Vertigo Tour in 2006. The inspiration for the 'spaceship-on-four-legs' design, nicknamed 'the Claw', came from the landmark Theme Building at Los Angeles International Airport.