'Ain't Misbehavin'' is a popular jazz and musical standard composed by Fats Waller in 1929, capturing the essence of the jazz era and its themes of love, longing, and fidelity. The song conveys a playful yet sincere message about devotion, suggesting that even in the absence of a partner, one remains faithful and committed. This song, along with its subsequent interpretations in musicals and revivals, showcases the development of African American musical forms and their significant impact on American culture.