Madonna Louise Ciccone is an American singer-songwriter and actress. She is considered one of the most influential figures in popular culture and has often been referred to as the "Queen of Pop". Madonna is noted for her continual reinvention and versatility in music production, songwriting, and visual presentation. She is also known for pushing the boundaries of artistic expression in mainstream music, while maintaining control over every aspect of her career. Her works, which incorporate social, political, sexual, and religious themes, have generated both controversy and critical acclaim.