Madonna Louise Ciccone is an American singer, songwriter, record producer, and actress. Dubbed the "Queen of Pop", she is known for her continual reinvention and versatility in music production, songwriting, and visual presentation. Her works, which concern social, political, sexual, and religious themes, have generated both controversy and critical acclaim. Regarded as one of the most influential musicians in history, Madonna broke gender barriers in popular music and has had a significant socio-cultural impact across her career.