An Evening with Groucho is a captivating look at the life of the renowned comedian Groucho Marx and the Marx Brothers, as narrated by Groucho himself. Born Julius Henry Marx in 1890, Groucho started his stage career aged 15 and eventually found success alongside his brothers in the musical comedy, I'll Say She Is. He became famous for his characteristic stooped posture, glasses, cigar, and thick greasepaint mustache and eyebrows.

The show is crafted from three separate performances in 1972: New York's Carnegie Hall, C.Y. Stephens Auditorium at Iowa State University, and San Francisco's Masonic Auditorium. Groucho shares personal stories and performs songs from Marx Brothers' stage shows and movies. The Carnegie Hall show features an introduction by Dick Cavett, and Marvin Hamlisch provides an opening overture and piano accompaniment. The recording was released as a double album by A&M Records, with a limited edition edited single picture disc in 1978 and a compact disc version later available. In 2018, An Evening with Groucho was selected for preservation in the National Recording Registry by the Library of Congress due to its cultural, historical, and artistic significance.