After the liberation in 1945 the jazz scene in the United States had changed, and "bop" (or bebop) had become the latest thing. Characterized by its virtuosity, harmonic complexity and tempo changes, bebop brought about a stylistic revolution. The big names were now Dizzy Gillespie and Charlie Parker, and Europeans learned about this new style of jazz when American records became available. In Belgium swing music was at its peak. The Belgian 'Lady of Swing' was Lucy Barcey. She was accompanied by the band of De Kers, among others.