Madonna is an American singer, songwriter, actress and entrepreneur. She has sold
more than 300 million records worldwide and is recognized as the world's top-selling
female recording artist of all time by Guinness World Records. Considered to be one
of the "25 Most Powerful Women of the Past Century" by Time for being an
influential figure in contemporary music, she is known for continuously reinventing
both her music and image, and for retaining a standard of autonomy within the
recording industry. Critics have praised her diverse musical productions which have
also served as a lightning rod for controversy.