 Complete the following phrase:  The tour was described as a rock driven dancetastic journey. It was divided into four acts: Pimp, where SM was the main theme; Retro, where Madonnas classic songs were performed while displaying work of deceased artist Keith Haring; Gypsy, a fusion of Romani folk music and dance with the performances ranging from melancholic to joyous; and Rave, where high-energy uptempo songs were performed. The last section of the show included a special request song, to which the audience was invited to sing-along. Some changes were made to the set list during the second European leg of the tour in 2009, including a dance tribute to 