Al Jolson was a prominent American entertainer who rose to fame in the early 1900s for his unique style of performance. Some synonyms that could be used to refer to him include "The World's Greatest Entertainer," "The King of Jazz," or simply "Jolie." Another popular moniker for Al Jolson was "The Singing Fool," which was the title of one of his most famous films. Jolson was known for his powerful and emotional singing style, as well as his charismatic presence on stage. He paved the way for future entertainers and left a lasting impact on American popular culture.