The Taylor Swift tornado has been sweeping across France for four days. The American star is giving this evening, the last of his four concerts, at the Défense Arena, which has been sold out for months already. Paris is the first stop on a tour she is undertaking in Europe. The pop star, who makes more than $1 billion thanks to income from her music, is, at 34, an icon. How did the star Taylor Swift become a global phenomenon? To talk about it, RFI welcomes Manuel Bocquier, doctoral student at the School of Advanced Studies in Social Sciences and at the University of Paris-1-Panthéon-Sorbonne, specialist in the history of popular music and racial segregation in the United States. United.