Ado Annie is a fictional character from the musical Oklahoma!, created by Rodgers and Hammerstein. She is known for her lively personality and her struggle with romantic choices, particularly between two suitors: Will Parker and Ali Hakim. Ado Annie's character adds humor and charm to the story, showcasing themes of love and independence. In the musical, Ado Annie famously sings the song "I Can't Say No," which highlights her playful nature and reluctance to commit. Her character represents the complexities of young love and the societal expectations of women during the early 20th century in America.