Aimee Semple McPherson was an evangelist and media celebrity in the early 20th century. She was a pioneer in the use of modern media, such as radio and television, to spread her message. She founded the Foursquare Church, an evangelical Christian denomination, and was one of the most influential religious figures of her time. McPherson was known for her flamboyant preaching style and her passionate commitment to her faith. She was also a controversial figure, due to her unorthodox beliefs and her involvement in several scandals.