Les McCann is an American jazz pianist and vocalist, known for his unique blend of jazz, soul, and funk. Born on September 23, 1935, in Lexington, Kentucky, he gained fame in the 1960s with his album Swiss Movement, which features the hit track “Compared to What.” His style is characterized by rhythmic grooves and expressive improvisation. Throughout his career, McCann has collaborated with various artists, including Cannonball Adderley and Herbie Hancock. He has performed at numerous festivals and venues, showcasing his talent and contributing to the evolution of jazz music. McCann's work continues to influence musicians today.