Remember when Madonna was dancing the night away in N.Y.C. clubs? Costume designer Arianne Phillips took inspiration from the Material Girl's early years in the city to create "nostalgic and fun" looks that "take Madonna back to her roots." Designer Jeremy Scott contributed '80s-inspired pieces with prints from the late artist Keith Haring, who was a close friend of Madonna's and would also have turned 50 this year. Madonna – who will celebrate her 50th birthday on Aug. 16 – is even getting custom sneakers with Haring's art on them.


One of the show's four parts has a gypsy inspiration. Phillips tells PEOPLE that "Madonna is a big fan of gypsy culture and music." Givenchy designer Riccardo Tisci created this look for the singer – one of several costumes he designed for the tour. Phillips emphasizes Madonna's long-standing commitment to working with new designers: "[Madonna] always has these fashion collaborations, and it's my responsibility to make sure that it's part of the story, she says. "People look forward to finding out who she is collaborating with and what designers are working on the costumes."


Another costume from the gypsy segment is this Givenchy cloak. Phillips describes the overall inspiration for the tour as "Joan of Arc meets sexy robot," to draw on her "confrontational quality as a performer."