The Who's That Girl World Tour (billed as Who's That Girl World Tour 1987) was the second concert tour by American singer and songwriter Madonna. The tour supported her 1986 third studio album True Blue, as well as the 1987 soundtrack Who's That Girl. It started on June 14, 1987, at the Osaka Stadium in Osaka, Japan, and ended on September 6 of the same year at the Stadio Artemio Franchi in Florence, Italy. It was Madonna's first world tour and marked her first visits to Japan and Europe. Musically and technically superior to her previous Virgin Tour, Who's That Girl incorporated multimedia components to make the show more appealing. Madonna trained physically doing aerobics, jogging and weight-lifting, to cope with the choreography and the dance routines. For the costumes, she collaborated with designer Marlene Stewart, expanding on the idea of bringing her popular video characters to life onstage, reworking scenes from her music videos. The stage had four video screens, multimedia projectors and a flight of stairs in the middle. Patrick Leonard, who was the musical director, encouraged Madonna to go with the idea of remixing and presenting her older songs for the show. The show consisted of seven costume changes, with song-and-dance routines, theatrics and addressing social causes. The tour was critically appreciated, with reviewers commending the extravagant nature of the concert and Madonna as a performer. It was a commercial success, grossing in total of US$25 million by playing in front of 1.5 million audience. According to Pollstar, it was the second highest-grossing female concert tour of 1987, behind Tina Turner's Break Every Rule Tour.