Madonna is an icon for female pop stars everywhere, thanks to her proven ability to reinvent herself while retaining complete control of her career. Madonna is one of the most commercially successful artists in the history of popular music. Over the last 20 years, Madonna has defined and redefined the sound and look of pop-culture. Her charisma, grace, and talent have earned her numerous musical achievements; she has broken sales records, compiled awards and nominations and identified herself as one of the world's most versatile stars. No other female singer in the pop arena has been as prominent or as successful over such a long period.